Answer is B- F has a smaller radius than F− because an additional electron causes greater repulsion in F− is the correct choice and the nuclear charge the radius of the anion increases.
Explanation: I hoped that helped!
The one that have larger radius is F-. The correct option is C.
What is atomic radius?A chemical element's atomic radius is a measurement of the size of its atom, usually the mean or typical distance from the nucleus's center to the outermost isolated electron.
Because a boundary is not a well-defined physical entity, various non-equivalent definitions of atomic radius exist.
As the number of energy levels decreases down a group, the distance between the nucleus and the outermost orbital increases.
As a result, the atomic radius expands. The ionic radius is the distance between the nucleus and the ion's electron cloud's outer edge.
Because they have fewer shells, F and F- are both smaller than the rest. F- now has one more electron than F, causing the radius to increase.
Thus, the correct option is C.
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!PLEASE HELP ASAP!
How many grams of aluminum can be produced by decomposing 12.3 grams of aluminum
oxide?
calculate the wavelength of a photon of green light that has a frequency (v) of 5.76x10^14 s^-1
Answer:
λ = 521nm
Explanation:
To convert wavelength to frequency we need to use the equation:
ν = c / λ
Where ν is frequency: 5.76x10¹⁴s⁻¹;
c is speed of light: 3x10⁸ms⁻¹;
And λ is wavelength in m:
Wavelength is:
λ = c / ν
λ = 3x10⁸ms⁻¹ / 5.76x10¹⁴s⁻¹
λ = 5.21x10⁻⁷m
= 521nm
The wavelength of a photon of green light that has a frequency (v) of 5.76x10¹⁴ s-¹ is 5.21 × 10-⁷m
HOW TO CALCULATE WAVELENGTH:
The wavelength of a photon can be calculated by using the formula below:λ = v/f
Where;
λ = wavelength of the photon (m)v = velocity (3 × 10⁸ m/s)v = frequency of photon (s-¹)According to this question, the frequency (v) of a greenlight is 5.76x10¹⁴ s-¹, the wavelength can be calculated as follows:λ = 3 × 10⁸ ÷ 5.76 x 10¹⁴
λ = 3/5.76 × 10⁸-¹⁴
λ = 0.521 × 10-⁶
λ = 5.21 × 10-⁷m
Therefore, the wavelength of a photon of green light that has a frequency (v) of 5.76x10¹⁴ s-¹ is 5.21 × 10-⁷m.Learn more at: https://brainly.com/question/19601903?referrer=searchResults
If a(n) ___
ended question is too challenging, respondents will abandon the survey
Answer:
Open ended question
Explanation:
Built different :]
Answer:
if an OPEN end question is too challenging respondents will abandon the surevy
Explanation:
What is the electric force acting between two charges of 0.0042 C and -0.0050 C that are 0.0030 m apart?
Answer: -2.1 x 10^10 N
Explanation:
One of the light waves produced when hydrogen is energized has a wavelength of 4.105 x10^-7 m. What is the frequency of this light?
Answer:
7.3 x 10¹⁴Hz
Explanation:
Given parameters:
Wavelength = 4.105 x 10⁻⁷m
Unknown:
Frequency of the light =?
Solution:
The frequency, wavelength and speed of a wave are related using the expression below;
C = f λ
C is the speed of light = 3 x 10⁸
f is the frequency
λ is the wavelength
3 x 10⁸ = f x 4.105 x 10⁻⁷
f = [tex]\frac{3 x 10^{8} }{4.105 x 10^{-7} }[/tex] = 7.3 x 10¹⁴Hz
Answer:
7.3 x 10¹⁴Hz
Explanation:
saturn surface features
Answer:
Surface pressure: 140 kPa
Surface gravity: 10.44 m/s2 (34.3 ft/s2); 1.065 g
Surface area: : 4.27×1010 km2 (1.65×1010 sq mi
Average orbital speed: 9.68 km/s (6.01 miles/s)
Answer:craters
Explanation:
A student found the percent composition of CO to be 50% C and 50% O. What did the student do Incorrectly? What is the percent composition of CO?
In addition to Earth, which planet has evidence of water on the surface?
(one Answer)Thank you
Mars
Mercury
Neptune
Saturn
Answer:
mars
Explanation:
just googled it
In addition to Earth, mars planet has evidence of water on the surface.
What are evidence of water?Evidence proves that financing results works Our strong evidence based on the proves that more lives and real can be changed through access to affordable inventing for water and sanitation.
Evidence of finding water on Mars first to be known in 2000, with the appearance of gullies that suggested us about a liquid origin. Their formation has been hotly in debated over the ensuing years.
Therefore, addition to Earth, mars planet has evidence of water on the surface.
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What pressure (in atm) does 3.54 moles of chlorine gas at 376 K exert on the walls of its 51.2 L container?
Answer:
2.13 atm
Explanation:
what is an autograph that transfers energy from the sun to make its own food?
Answer:
Photoautotrophs
Explanation:
I think you mean "autotroph"
The answer is photoautotrophs. they use sunlight to make their food
Don't forget to rate the answer for others
All elements are unstable except the noble gases
True or False
Answer:
True
Explanation:
Noble gases already have the maximum number of valence electrons they can hold so they are the only stable group
what is the mass in grams of 0.00125 mole of sodium Na=23
Answer:
0.03g
Explanation:
Given parameters:
Number of moles of Na = 0.00125mole
Unknown:
Mass in grams of Na = ?
Solution:
To find the mass of this substance, we simply multiply the number of moles with the given molar mass of Na.
Mass of Na = number of moles x molar mass
Mass of Na = 0.00125 x 23 = 0.03g
Use the periodic table to select which type of bond is present and which of the listed properties is most likely for each substance.
A =
B =
Cu3Zn2
O2
Answer:
A :metallic
B :conducts electricity as a solid
C :covalent
D :does not conduct electricity
Explanation:
Answer:
A = ✔ metallic
B = ✔ conducts electricity as a solid
C = ✔ covalent
D = ✔ does not conduct electricity
Explanation:
edge 2023
what is the molar mass of iron (III) sulfate
Answer:
399.88 g/mol
Explanation:
Iron(III) sulfate, is the chemical compound with the formula Fe₂(SO₄)₃. Usually yellow, it is a salt and soluble in water. A variety of hydrates are also known. Solutions are used in dyeing as a mordant, and as a coagulant for industrial wastes.
How many moles are in 35.0g of sodium (Na).
Answer:
2.5 I don't have a explanation
Describe the structure of sodium metal?
Answer:
The body-centred cubic (bcc) structure is the most stable form for sodium metal at 298 K (25°C). Under normal conditions, all of the Group 1 (alakali metals) elements are based upon the bcc structure. The closest Na-Na separation is 372 pm implying a sodium metallic radius of 186 pm.
Explanation:
Which type of energy produces almost no waste or pollution?
A: burning coal
B: nuclear energy
C: solar energy
Answer:
B: nuclear energy.
Explanation:
It is emission-free and it saves 2.4 billion tons of carbon emissions per year. Also, the level of hazard of nuclear waste does decrease during the time.
Hope that helps!
What is the molarity of a solution if 5 moles of solute are dissolved in 8 L of solvent.
Answer:
0.625mol/L
Explanation:
Given parameters:
Number of moles of solute = 5moles
Volume of solvent = 8L
Unknown:
Molarity = ?
Solution:
Molarity is the number of moles of solute per unit volume of solution. It is mathematically expressed as
Molarity = [tex]\frac{number of moles }{Volume}[/tex]
Molarity = [tex]\frac{5}{8}[/tex] = 0.625mol/L
What is the density of an object with a mass of 140 g and a volume
of 6 ml
Answer:
23.33 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\ [/tex]
From the question we have
[tex]density = \frac{140}{6} = \frac{70}{3} \\ = 23.3333...[/tex]
We have the final answer as
23.33 g/mLHope this helps you
Which of the following is not a correct formula unit for a salt made from main group elements?
Ca0
AIFA
Al2O3
Ca3N2
Answer:
The correct option is AlFA
Explanation:
There is no element in the periodic table with the symbol of A. Thus, the compound AlFA is wrong and cannot be a salt made from main group elements. CaO is calcium oxide, Al₂O₃ is aluminium oxide and Ca₃N₂ is calcium nitride - all are evidently made from elements from the main groups of the periodic table (except the AlFA)
Magnesium will...
• Gain 2 electrons and become Mg2-
• Lose 2 electrons and become Mg2-
• Gain 2 electrons and become Mg2+
• Lose 2 electrons and become Mg2+
Answer:
D
Explanation:
magnesium always lose 2 electrons
How do you think the atomic radii will change as electrons are added to a shell?
Answer:
As electrons are added to the valence shell, an extra proton (i.e fundamental, positively charged nuclear particle) is added to the element's nucleus. As electrons add and Z the atomic number increases 1 by 1, nuclear charge WINS, and electronic radii contract.
Explanation:
Hope this helps you
Crown me as brainliest:)
Of the three states of water(ice,liquid, and water vapor), in which state are the intermolecular forces the strongest? In which state are they the weakest
At which point does a chemical reaction reach dynamic equilibrium?
A. When no further reaction occurs in either direction of the reaction
B. When the concentrations of reactants and products are different
O C. When reactants are decreasing rapidly and products are
increasing slowly
D. When the concentrations of reactants and products stay the same
Answer:
D. When the concentrations of reactants and products stay the same
Explanation:
[tex]\bigstar[/tex] Dynamic equilibrium is when rate of forward reaction is equal to the
rate of backward reaction. The concentration of Product and Reactant
are both same, no net change. Hence Option D is correct.
When the concentrations of reactants and products stay the same at this point a chemical reaction reach dynamic equilibrium.
Hence, Option (D) is correct answer.
What is a Chemical Reaction ?A chemical reaction is a process in which chemical bonds between atoms to break and reorganize, to form other new substances.
What is Dynamic Equilibrium ?Dynamic equilibrium occurs in reversible reactions when the number of particles becomes product is equal to number of particles becomes reactant. Chemical equilibrium is dynamic in nature.
Thus from the above conclusion we can say that When the concentrations of reactants and products stay the same at this point a chemical reaction reach dynamic equilibrium.
Hence, Option (D) is correct answer.
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WILL GIVE BRAINLIEST
Answer:
Explanation:
NaClO3
Atomic masses:
Na =23
Cl=35.5
O=16
Molar mass=(23)+(35.5)+(3×16) =106.5g/mol
Jocelyn and her friends put some raisins, hazelnuts,
almonds, and peanuts in a bowl to make a snack for their
hiking trip. What does this snack represent?
A. a solution
B. a new element
C. a new compound
D. a mixture
plspslsspslpsl help its revision for exam and i need it quick brainliest for the right answer :D
Answer: a mixture
Explanation:
Nitrogen and carbon can form ___ bonds in which six electrons ( three pairs ) are shared.
A. Single Covalent
B. Ionic
C. Hexadecimal
D. Triple covalent
Can someone help me with this?
Answer:
b
Explanation:
it i b ur welcome
Answer: um sure so 2+4= 24 then 9+7=97
Explanation: bc if you have 2 and you have 4 and if you smash that together you get 24 and 9 and 4 smash that together and you get 94 see so easy
what is the molar mass of ammonium sulfite
Answer: 116.15 g/mol
Hello can someone help me out i will give brainliest.. chemical or physical change hwwwww
Answer:
11. physical
19. chemical
10. chemical
12. physical
18. chemical
Explanation:
that should be right, I'm not exactly sure though