How do covalent bonds form?

• Transfering & receiving valence electrons between atoms.

• Opposite charges attract each other between compounds.

• Scientists are still not sure how they form.
• Sharing valence electrons between atoms.

What types of atoms make/form a covalent bond?

• 2 or more Nonmetals

• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

Which of the following is NOT formed by a covalent bond?

• K₂S
• H₂O
• I₂
• CO₂

How many valence electrons does hydrogen have?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-1

A dot diagram for Neon would show how many valence electrons?

• 8

• 6

• 2

• 10

Tags

NGSS.HS-PS1-1

A dot diagram with only four dots (valence electrons) could be which of the following atoms?

• Ne
• H
• C
• F

Tags

NGSS.HS-PS1-1

Oxygen has a valence electron number of...

• 8

• 6

• 2

• 4

Tags

NGSS.HS-PS1-1

How are covalent bonds explained?

• When one atom transfers electrons to another atom

• When the atom shares an electron with an another atom
• When the nucleus of each atom merge as one

• When the neutrons leave the nucleus, transfering to another atom

Tags

NGSS.HS-PS1-1

How many valence electrons do most atoms need to be stable?

• 1
• 2
• 6
• 8

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which side of the periodic table would you find the nonmetals?

• left side

• center

• right side