Question

Please help me with this!

These 2 subatomic particles are found in the nucleus of an atom.

How many electrons can the second energy level hold?

The periodic table is organized so that the _____ properties of the elements repeat in a regular way.

Where are valence electrons located?

What is electro negativity?

Which column of the periodic table contains elements that are not reactive?

Answer 1

You asked +5 questions........ thats a bit too many.....

Answer 2

no its not. 6 questions are fine, and I'd like help, not what number of questions I can post.

Answer 3

Uh huh.

Answer 4

You probably didn't notice but you posted your chemistry question in Biology section. Please repost your questions in relevant section. Thank you.