NGSS.HS-PS1-1

Element or Compound?
As

• Element
• Compound

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NGSS.HS-PS1-1

How would this element be classified?

• Metal
• Nonmetal
• Metalloid
• Metamorphic

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The atoms along the staircase are called 

• metals
• nonmetals
• metalloids
• noble gases

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NGSS.HS-PS1-1

What does the 6 represent?

• atomic mass
• atomic number
• element name
• chemical symbol 

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How many electrons does Barium (Ba) have?

• 13

• 2

• 71

• 56

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NGSS.HS-PS1-1

What are the elements in group 1 (the far left) of the periodic table called?

• Alkali metals

• Alkaline earth metals

• Halogens

• Noble gases

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NGSS.HS-PS1-1

a grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group

• family

• period

• row

• isotope

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NGSS.HS-PS1-1

A Bromine ion gains 1 electron, which of the following is the correct symbol for a Bromine ion?

• Br^-1

• Br⁺¹

• Br⁺⁷

• Br^-7

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NGSS.HS-PS1-1

Which element is 1s2 2s2 2p6 3s2 3p6 4s2 3d7?

• Cobalt

• Nickel

• Manganese

• Chromium

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NGSS.HS-PS1-1

How many unpaired electrons are in an atom of nitrogen in its ground state?

• 2

• 3

• 5

• 7

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NGSS.HS-PS1-1