IONS and VALENCE ELECTRONS

What is a positive ion called?

• anion

• cation

• isotope

• covalent

What is a negative ion called?

• anion

• cation

• covalent

• isotope

If an atom gains electrons, the charge will be positive.

• true

• false

Which particles change the charge in atoms when ions are formed?

• Protons

• Electrons

• Neutrons

Cations are...

• Positive

• Negative

• Neutral

An atom becomes _________ when it gains electrons.

• Positive

• Negative

• Neutral

An atom becomes _______ when it loses electrons.

• Positive

• Negative

• Neutral

Tags

NGSS.MS-PS1-1

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

• -1
• -2
• +1
• +2

How many protons does lithium (Li) have?

• 1

• 2

• 3

• 4

• 7

• 6

• 5

• 4

Tags

NGSS.MS-PS1-1