Phy Sci 3

A(n) __________ is an atom that has gained or lost electrons to bond with other elements.

• ion

• atom

• compound

• formula

Which of the following is a cation?

• Ca

• Ca⁺²

• F

• F⁻¹

What group or family on the periodic table has a -2 charge?

• group 1

• group 2

• group 16

• group 17

What is the charge of the group 15 elements?

• +3

• -3

• +2

• -2

Based on this information, the unidentified element is BEST classified as which of the following?

• a metal in group 1 (1A)

• a metal in group 14 (4A)

• a nonmetal in period 4

• a nonmetal in period 5

Tags

NGSS.MS-PS1-1

An atom of Mg has _________ than an ion of Mg.

• More electrons

• More neutrons

• More protons

• A heavier atomic mass

To form an ion a Mg atom

• Gains 2 protons

• Loses 2 electrons

• Loses 2 protons

• Gains 2 electrons

Mg ions are known as

• Cations because there are more protons than electrons

• Anions because there are more electrons than protons

• Atoms because there the protons = electrons

• Cations because there are less protons than electrons

Mg ions have the same number of _______ as _______.

• Protons as neon

• Protons as Argon

• Electrons as Neon

• Electrons as Argon

An ion of P has _________ than an atom of P.

• More electrons

• More neutrons

• More protons

• A heavier atomic mass