Ionic and Covalent Bonds

Why is sodium (Na) so reactive?

• Because it's a metal

• Because it has 11 protons

• Because it has 11 electrons

• Because it has 1 valence electron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When atoms gain or lose electrons, they are called

• Isotopes

• Atoms

• Ions

• Electrons

True or False

Atoms can share electrons

• True

• False

Tags

NGSS.MS-PS1-1

When atoms bond together, a _________ is formed.

• Mixture

• Compound

• Pair

• Solution

Tags

NGSS.MS-PS1-1

In a covalent bond, electrons are

• Gained

• Pulled apart

• Shared

• In the nucleus

Covalent bonds form between

1. Metal - Non-metal

2. Non-metal - Non-metal

3. Metal - Metalloid

4. Non-metal - Metalloid

• 1 and 2

• 2 and 3

• 3 and 4

• 2 and 4

Tags

NGSS.MS-PS1-1

In ionic bonds, electrons are

• Gained or lost

• Shared

• Mixed randomly

• Negatively charged

Tags

NGSS.MS-PS2-3

Positive ions

• Gain electrons

• Lose electrons

Tags

NGSS.HS-PS1-1

Negative ions

• Gain electrons

• Lose electrons

Ionic bonds are nearly always _______ at room temperature.

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.MS-PS1-4