ionic and covalent bonds

Why do all bonds form?

• so the number of protons equals the number of electrons

• so an atom can become unstable

• to fill the outermost energy level

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

Valence electrons are found

• in the innermost energy level of an atom

• in the middle energy levels of an atom

• in the outermost energy levels of an atom

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

How many Aluminum atoms are in Al₂O₃?

• 3

• 5

• 2

• 1

Tags

NGSS.MS-PS1-1

When naming ionic compounds, the metal is always named first and the nonmetal is always named second.

• True

• False

Write the correct formula for Sodium Chloride.

• SC

• SCl

• NaCl

• NaCl₂

Tags

NGSS.MS-PS1-1

Mg₃N₂

• Magnesium nitride

• Magnesium (II) nitride

• Trimagnesium dinitrogen

Tags

NGSS.MS-PS1-1

How many valence electrons does hydrogen have?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

When an atom loses an electron, it becomes a

• positive ion

• negative ion

• neutral ion

• neutral atom

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

What is the proper name for CH_4?

• Monocarbon hydride

• Carbon tetrahydride

• Monocarbon tetrahydride

Tags

NGSS.MS-PS1-1

What is the proper name for S₂O₂?

• Sulfur oxide

• Sulfur dioxide

• Sulfur (II) oxide

• Disulfur dioxide

Tags

NGSS.MS-PS1-1