Chemistry Unit 1 Review

Match the following

• Noble Gases

• Group 2

• Alkali Metals

• Group 1

• Transition metals

• Group 17

• Halogens

• Group 18

• Alkaline Earth Metals

• Groups 3-12

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Match the following

• At least 2 DIFFERENT atoms combined together

• Molecules

• Contain only one type of atom

• Elements

• at least 2 atoms combined together

• Mixture

• 2 or more substances that are NOT chemically combined

• Compounds

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This periodic table shows elements 1 and 2 if element 1 has an atomic number of 19 what is the atomic number of element 2 ?

• 20

• 28

• 30

• 34

Match the following

• electrons

• Located in the nucleus; have a positive charge; and a mass of 1 amu

• neutrons

• located in the nucleus; have no charge; and no charge

• Protons

• Located outside of the nucleus; have a negative charge; and a mass of 1/2000th of an amu

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Which of the following is a compound

• water

• hydrogen

• nitrogen gas

• oxygen

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Which of the following is a compound and a molecule

• Ca

• CH

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Uranium has an atomic number of 92 and an atomic mass of 238. What is the number of neutrons in Uranium?

Elements with similar qualities are located in the same

elements are placed in the periodic table based on the number of

• neutrons

• electrons

• protons

• protons + neutrons

Put the following in order

• reactants

• --> (yields)

• products

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NGSS.MS-PS1-5