Ions Review

An atom becomes _________ when it gains electrons.

• Positive
• Negative
• Neutral
• Invinsible

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

An atom becomes _______ when it loses electrons.

• Positive
• Negative
• Neutral
• Invinsible

Cations are...

• Positive
• Negative
• Neutral
• Purring

Anions are...

• Positive
• Negative
• Neutral
• Crying

Tags

NGSS.HS-PS1-3

Why are ions formed?

• To make our lives difficult

• Because atoms want to be stable with 8 valence electrons

• Because atoms have the same number of protons and electrons

• Because atoms gained neutrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

An atom with 2 protons, 3 neutrons, and 4 electrons has a charge of ____.

• +2

• -2

• +3

• 0

How many protons, neutrons, and electrons?

• proton = 6, neutron = 4, electron = 1

• proton = 4, neutron = 4, electron = 5

• proton = 1, neutron = 6, electron = 10

• proton = 4, neutron = 2, electron = 3

Tags

NGSS.MS-PS1-1

A Bromine ion gains 1 electron, which of the following is the correct symbol for a Bromine ion?

• Br^-1

• Br⁺¹

• Br⁺⁷

• Br^-7

Tags

NGSS.HS-PS1-1

What is the charge of an atom that has lost one electron?

• -1
• -2
• +1
• +2

True/False: There are equal numbers of protons and electrons in a neutral atom.

• true

• false

Tags

NGSS.HS-PS1-7