Answer:
The atomic radius increases down the group because more shell are added
Explanation:
Al >B
Na>Al
S>O
O>F
Br>Cl
Mg>Ca
<span>The number of neutrons bromine will have are equal to
= protons + neutrons
so,
80-35=45</span>
Just ignore such kind of people....
<u>Answer:</u>
3.67 moles
<u>Step-by-step explanation:</u>
We need to find out the number of
moles present in 350 grams of a compound.
Molar mass of
= 24.305
Molar mass of
= 35.453
So, one mole of
= 24.305 + (35.453 * 2) = 95.211g
1 Mole in 1 molecule of
= 
Therefore, number of moles in 350 grams of compound = 0.0105 * 350
= 3.67 moles