The Periodic Table of Elements

Hydrogen is a:

• Alkali metal

• Metalloid

• Non-metal

• Noble gas

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The neutral particle in the nucleus of an atom is a:

• Proton

• Neutron

• Electron

• Shell

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The number of protons in the nucleus of an atom is equal to the:

• Atomic number

• Atomic mass

• Number of neutrons

• Number of valence electrons

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Which element is found in period 3 group 2?

• Sodium (Na)
• Magnesium (Mg)
• Yttrium (Y)
• Boron (B)

What do the elements highlighted orange have in common?

• The same number of protons
• The same number of electrons
• The same number of neutrons
• The same number of electrons shells

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Elements in the same________ often have similar chemical and physical properties.

• period
• group

In which region would the nonmentals be found?

• 1
• 4
• 3
• 5

Protons have a ____________ charge, neutrons have a ____________ charge, and electrons have a ____________ charge.

• positive; negative, neutral

• positive, neutral, negative

• neutral, negative, positive

• negative, neutral, positive

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NGSS.MS-PS1-1

How did Mendeleev arrange the elements?

• alphabetical 
• density
• melting point
• atomic mass

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Pure forms of these elements are stored in oil so they won't react with oxygen and water in the air.

• Alkali Metals
• Alkaline-earth metals
• Halogens
• Noble Gases

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