6 views
An atom has electronic configuration 2, 8, 7. What is the atomic number of this element?
in Periodic Classification of Elements by | 6 views

1 Answer

The element with electronic configuration (2+8+7) = 17 is chlorine.

The no. of atomic number = no. of electrons

Therefore, atomic number is 17.
by
431 questions
367 answers
0 comments
447,292 users