Chem Final Review

Which combination of elements would MOST LIKELY form an ionic compound?

• hydrogen and carbon

• carbon and chlorine

• chlorine and fluorine

• silicon and sulfur

 A neutral atom of a certain element has the electron configuration below. How many valence electrons does the atom have?

1s²2s²2p⁶3s²3p¹

• 1

• 3

• 13

• 2

Tags

NGSS.HS-PS1-1

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How many electrons are in the outermost energy level of a neutral carbon atom?

• 4

• 12

• 6

• 1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

 The compound potassium bromide is placed in water and separates into ions. What are the correct names for these ions?

• The potassium and bromide are cations

• The potassium and bromide are anions

• The potassium is the anion, the bromide is the cation

• The potassium is the cation, the bromide is the anion

 When aluminum and oxygen react, which compound is produced?

• AlO

Tags

NGSS.HS-PS1-1

Which element will form covalent bonds with bromine?

• Nitrogen

• Sodium

• Cobalt

• Uranium

Tags

NGSS.HS-PS1-1

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What is the chemical formula for the compound Iron (III) Oxide?

• FeO

• Fe₃O₂

• Fe₂O₃

• Fe₃O

What is the name of CoF

• Cobalt Fluoirde

• Cobalt Monofloride

• Cobalt (I) Fluoride

• Fluorocobalt

How is sodium (Na) classified based on its location on the periodic table?

• nonmetal

• alkali metal

• alkaline metal

• transition metal

Tags

NGSS.HS-PS1-1

How many electrons are in the outermost energy level of an electrically neutral atom of boron?

• 5

• 3

• 2

• 1

Tags

NGSS.HS-PS1-1