Question

QUICK PLEASE!!!!

The location of an element on the periodic table reveals a lot of information about it. How many energy levels of electrons are around the nucleus of an argon atom? *

1
3
8
18

Answer 1

3... because argon has 18 protons and 18 electrons.There are 2 electrons on the first energy level, 8 electrons on the second level, and 8 electrons on the third energy level.

Answer 2

3 I think I did this a year or too ago and now to get to 20.
`x^(2) \lim_(n \to \infty) a_n \geq x_(123) \\ \lim_(n \to \infty) a_n \sqrt[n]{x}` and that is how if u don't understand ill re tell you. ;D