GRADED Ions & Valence Electrons Review

Ions are ________

• atoms with an electric charge

• atoms with different number of protons

• atoms with different number of neutrons

Metals form positive ions which are also known as________

Non-metals form negative ions which are also known as ____________

Which of the following ions have a +1 charge? Select ALL that apply

• Hydrogen (H)

• Helium (He)

• Calcium (Ca)

• Lithium (Li)

Ions have the same number of protons but different number of _________________

• neutrons

• electrons

• protons

• toes

Isotopes have the same number of protons but different number of _________________

• neutrons

• protons

• electrons

• eyes

______________ electrons are found in the outermost energy level of an atom.

• neutral

• valence

• purple

• proton

Which of the following ions have a +2 charge? Select ALL that apply.

• Hydrogen (H)

• Magnesium (Mg)

• Calcium (Ca)

• Lithium (Li)

How many valence electrons does Hydrogen (H) have?

• 1

• 2

• 3

• 4

Atoms in Group 13 will ______ 3 electrons to form a +3 charge