This word applies to anything without a charge

This element as 79 protons

A vertical column of the periodic table

Cations

How many valence electrons in 2-8-3?

Same element, different mass

This element has 14 neutrons and a mass of 27 amu

The name for the least reactive group of elements on the periodic table

Electron

What element is 2-8-8-2?

Contains all the protons & neutrons in an atom

This element has the smallest mass for an alkali metal

A horizontal row of the periodic table

9 protons, 10 electrons

What element is 2-8-18-18-7?

Outermost occupied energy level in an atom

This element has 6 occupied energy levels and 4 valence electrons

Group 17

12 protons, 10 electrons

Ground or excited state: 2-8-16-2

When an electron has gained energy and moved up to a higher energy level

This element has 2 isotopes, one with a mass of 35 amu and one with a mass of 37 amu

Group 2

25 protons, 18 electrons

How many completely filled energy levels in 2-8-18-32-18-2?