Question

Please solve questions 3 and 4
solve fast
Next question is of 60 points​

Answer 1

Answer:

Pls write clearly

Explanation:

2--- The atomic number of sodium is greater than that of hydrogen. So, it needs more number of shells to fill electrons and hence will have more number of shells than hydrogen. Hence, atomic size of sodium is bigger than that of sodium.Jan

3---- Fluorine has one electron in outermost shell as belong from Halogens i.e. 17th grp

Be and Ca are from same group i.e. 2nd group

I didn't get the handwriting of E (b) write the formlua one..

Hope so you got the rest...