Lewis Structures

How many electrons should Carbon have around its Lewis dot model?

• 1
• 3
• 4
• 5

Tags

NGSS.HS-PS1-1

How many electrons should Oxygen have around its Lewis dot model?

• 5
• 6
• 7
• 8

Tags

NGSS.HS-PS1-1

SO2 is called:

• Sulfur dioxide
• Sulfur monoxide
• Monosulfur dioxide
• Disulfur

Three pairs of electrons are shaired

• Single bond
• Double bond
• Triple bond

Tags

NGSS.HS-PS1-4

A covalent bond is

• a bond that shares electrons metallicaly
• A bond that shares electrons with non metals
• Metalloids bonding
• metals and nonmetals bonding

tetra

• Earth
• Four
• Five
• Multiple

How are covalent bonds explained?

• When one atom takes the other atom's electron
• When an atom shares electrons with an another atom
• When an atom shares neutrons with an another atom
• When one atom takes the other atom's nuetrons

Tags

NGSS.HS-PS1-2

What is the correct formula for this molecule?

• NH
• N₃H
• NH₃
• NH₄

Tags

NGSS.MS-PS1-1

What is the correct formula for this molecule?

• Si₄F
• SiF₄
• SiF
• Si₄F₄

Tags

NGSS.MS-PS1-1

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

• A
• B
• C
• D

Tags

NGSS.MS-PS1-1