Chem Bonding 8th grade

What is a bond that forms when electrons are transferred from one atom to another?

• ionic bond
• electron bond
• crystal bond
• atom bond

What is the charge of an aluminum ion that has 13 protons and 10 electrons?

• 1+
• 3+
• 2+
• 3-

What is the charge of a sodium ion with 11 protons and 10 electrons?

• 1+
• 1-
• 2+
• 2-

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Why do bonds form?

• To fill the valence shell of electrons for the elements involved
• to release energy stored in the bonds
• because whenever you mix two chemicals, there will be a reaction
• because of attraction

Tags

NGSS.HS-PS1-4

Bonds formed by sharing electrons between atoms are

• ionic

• metallic

• covalent

• dipole-dipole

Tags

NGSS.HS-PS1-2

A compound is made of two nonmetals. It is

• ionic

• metallic

• covalent

A compound forms between a metal and a nonmetal. It is

• ionic

• metallic

• covalent

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is true of ionic bonds?

• Electrons are completely transferred during bonding
• Electrons are shared during bonding
• Electrons are not involved with bonding
• All of the above

Tags

NGSS.HS-PS1-2

Protons have a charge of:

• -1
• +1
• -2
• +2

The charge of a normal atom is:

• Positive
• Neutral
• Negative