Question

There are three shells in the atom of element 7 electrons
are present in its outermost shell.
a)
Write the electronic configuration of the element
b) What is its atomic number?
c) In which period does this element belong to?
d) In which group is this element included?
e) Write the name and symbol of this element?
f) To which family of element does this element be
to?​

Answer 1

Answer:

I can't understand sorry for this very sorry