PSci 4.1

Fill in the Blank

Two or more elements chemically combined.

Multiple Choice

The properties of a compound are the same as the properties of the elements that make up the compound.

• true

• false

Multiple Choice

Which is the correct chemical formula for water?

• $$H_2O$$  

• $$H2O$$  

• $$HO_2$$  

• $$HO2$$  

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How many Hydrogens are in $$C_6H_{12}O_6$$  ?

Fill in the Blank

How many valence electrons do MOST atoms want in their outer shell?

Fill in the Blank

How many electrons does Hydrogen want in its outer shell?

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How many valence electrons does Sodium have?

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How many valence electrons does Chlorine have?

Multiple Select

Select all the elements that WOULD NOT form a compound.

• H

• He

• Cl

• Ne

• Kr

Fill in the Blank

A force that holds atoms together.

Fill in the Blank

In ionic bonds, atoms _________ electrons in order to be stable.

Multiple Select

Select all the atoms that would have a POSITIVE charge.

• metal

• cation

• nonmetal

• anion

Multiple Select

Select all the atoms that would have a NEGATIVE charge.

• metal

• cation

• nonmetal

• anion

Fill in the Blank

Iodine has a charge/oxidation number of

Fill in the Blank

Bromine has a charge/oxidation number of

Draw

Draw the dot diagram for Hydrogen.

Draw

Draw the dot diagram for Carbon.

Draw

Draw the dot diagram for Fluorine.

Draw

Draw the dot diagram for Phosphorus.

Draw

Draw the electron dot structure showing the combination of Potassium & Chlorine.

Draw

Draw the electron dot structure showing the combination of Magnesium & Fluorine.

Draw

Draw the electron dot structure showing the combination of Aluminum & Nitrogen.

Draw

Draw the electron dot structure showing the combination of Magnesium & Phosphorus.