Which of the following is an ionic compound?

• HCl

• H₂O

• MgO

• CO₂

When one atom transfers one or more valence electrons to another atom, a(n) __________ is formed.

• covalent bond

• ionic bond

• metallic bond

• hair bond

Tags

NGSS.HS-PS1-3

If an element belongs to Carbon group in the Periodic table, how many valence electrons are found on their outermost shell?

• 2

• 3

• 4

• 5

What is the ionic charge of a Calcium ion?

• 2+

• 2-

• 3+

• 3-

Which element will be paired to Sulfur for it to become a covalent compound?

• Potassium

• Magnesium

• Aluminum

• Carbon

Tags

NGSS.MS-PS1-1

What is the ionic charge of an Oxygen ion?

• 2+

• 2-

• 4+

• 4-

What type of bond is formed between Li and F?

• Covalent

• Ionic

• Metallic

• Carbon

When electron(s) are shared between two or more atoms, they form?

• Covalent bond

• Ionic bond

• Metallic bond

• Carbon bond

Which of the following is an Covalent compound?

• NaCl

• CaCl₂

• KI

• CO

Tags

NGSS.MS-PS1-1

How many valence electrons are there for Phosphorus?

• 4

• 5

• 6

• 7