NGSS.HS-PS1-1

Elements in a ..................have similar chemical properties.  

• period
• group
• row

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NGSS.HS-PS1-1

What element is will have the most similar physical and chemical properties to the element Lithium (Li)?

• Sodium (Na)
• Magnesium (Mg)
• Beryllium (Be)
• Calcium (Ca)

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NGSS.HS-PS1-1

Elements which are shiny, conduct electricity and heat are called

• metal
• nonmetal
• metalloid
• nonexistent

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NGSS.HS-PS1-1

How many valence electrons are found in atoms of group 14?

• 4
• 3
• 14
• 16

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NGSS.HS-PS1-1

How many valence electrons does a carbon atom have?

• 8

• 4

• 2

• 6

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The chemical properties of calcium are MOST similar to the chemical properties of :

• Ar

• K

• Sc

• Mg

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NGSS.HS-PS1-1

An atom of argon in the ground state tends not to bond with an atom of a different element because the argon atom has

• more neutrons that protons

• a total of two valence electrons

• more protons than neutrons

• a total of eight valence electrons.

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NGSS.HS-PS1-1

The groups on the periodic table correspond to the number of ________ in an atom.

• valence electrons

• energy levels

• protons

• neutrons

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Which element has 2 valence electrons?

• H

• Ca

• Na

• C

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Which group has elements with a full valence shell?

• Group 1

• Group 2

• Group 15

• Group 18

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