What is the predominant intermolecular force in CBr4
1 answer:
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Answer:
The ionic radii increase as the atomic numbers increase.
Explanation:
As we go down a Group, we are adding one more electron shell to the ion.
Each successive shell is bigger than the one before it, so the ionic radius should increase with increasing atomic number.
Here is a table of the ionic radii of the X⁻ ions.
<u>Element </u> <u> Z </u> <u> </u><u>r/pm </u>
F 9 133
Cl 17 181
Br 35 196
I 53 220
At 85 227
However, the relation between r and Z is not linear (see graph).
All we can say is the ionic radius increases as the atomic number increases.
Answer:
2.91 grams of Magnesium
Explanation:
I put a picture . I used the molar mass of magnesium which can be calculated from the periodic table or simply google it. :) I hope it helps - Enrique
Answer:
The wavelength of radio wave is 3m
Explanation:
speed of r.w (v) = 3 × 10⁸ m/s
frequency (f) = 1 × 10⁸ Hz
wavelength (λ) = ?
λ = v/f
= (3 × 10⁸) ÷ (1 × 10⁸)
= 3m
(Correct me if i am wrong)