8.5 B: Identity, Valence Electrons and Reactivity

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5 questions
Note from the author:
Identification of atom using protons, valence electrons and reactivity (without use of the periodic table)
Required
1

What atom/element has 20 protons in the nucleus?

Required
1

What subatomic particle is the arrow most likely pointing at?

Required
1

Identify how many valence electrons are found in the atom model below.

Required
1

Based on the atom model below, determine its reactivity.

Required
3

Based on the atom model below, determine which statements accurately describe this atom.