Lewis Dot

What is the correct Lewis Dot Structure for ammonia NH₃

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Which is the correct molecular structure for carbon dioxide CO₂?

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Tags

NGSS.HS-PS1-2

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A
• B
• C
• D

Tags

NGSS.MS-PS1-1

CCl₄ has how many double bonds?

• 0

• 1

• 2

• 3

Tags

NGSS.HS-PS1-1

In HCN how many total electrons will there be in the drawing? (Hint: A column)

• 14

• 18

• 10

• 4

Tags

NGSS.HS-PS1-1

Which of the following elements are an exception to the octet rule and require less than 8 valence electrons?

• H only needs 2

• Li only needs 3

• B only needs 6

• C only needs 4

Tags

NGSS.HS-PS1-1

What bond is formed when a metal transfers electrons to a nonmetal?

• Covalent bond

• Ionic bond

• Metallic bond

Tags

NGSS.HS-PS1-2

What is a cation?

• a metal with a negative (-) charge that gains electrons

• a non-metal with a negative (-) charge that loses electrons

• a metal with a positive (+) charge that loses electrons

• a non-metal with a positive (+) charge that loses electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is a anion?

• a metal with a negative (-) charge that loses electrons

• a non-metal with a negative (-) charge that gains electrons

• a metal with a positive (+) charge that gains electrons

• a non-metal with a positive (+) charge that loses electrons

Tags

NGSS.HS-PS1-1

MgCl₂

• Ionic

• Covalent

• Metallic

Tags

NGSS.HS-PS1-2