Covalent and Ionic Bonding

What two types of atoms make a covalent bond?

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

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NGSS.MS-PS1-1

How are covalent bonds explained?

• When one atom takes the other atom's electron
• When the atom shares an electron with an another atom
• When the two nucleus merge
• When the neutrons leave the nucleus

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NGSS.HS-PS1-2

In chemical compounds, covalent bonds form when

• the electronegativity difference between two atoms is very large.
• electrons are completely transferred between two metals.
• pairs of electrons are shared between two nonmetal atoms.
• two nonmetal atoms are attracted to each other by opposite charges.

What region of the periodic table contains atoms that form covalent bonds?

• the left side
• the middle
• the right side
• top left

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is NOT covalently bonded?

• K₂S

• H₂O

• I₂

• CO₂

Outer shell electrons are called

• outer electrons

• valence electrons

• negatives

• super electrons

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element forms a diatomic molecule using a triple covalent bond?

• C
• N
• O
• P

What is the number of pairs of electrons that are shared between the nitrogen atoms in a molecule of N₂?

• 1

• 2

• 3

• 6

Which formula represents a molecular compound?

• LiCl

• KCl

• KI

• NO₂

How do the following two elements bond together?
Cr³⁺  O^2-         

• CrO
• Cr₃O₂
• Cr₂O₃
• CrO₃

Tags

NGSS.MS-PS1-1