Unit 2 - Atoms and Periodic Table

What are the three main groups of the periodic table?

• groups

• metal

• nonmetals

• metalloids

• periods

What does the number of proton tell us?

• electrons

• atomic number

• atomic mass

• neutrons

How many protons and electrons does nickel have?

• 28

• 58.69

Tags

NGSS.MS-PS1-1

Titanium is in group 4. What period is it in?

• 2

• 3

• 4

• 5

Krypton is in what group?

• 16

• 17

• 18

• 19

What does the nucleus of an atom contain?

• Electrons and neutrons
• Protons and neutrons
• Neutrinos and positrons
• DNA and RN

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NGSS.MS-PS1-1

An electron has a _________ charge

• positive

• neutral

• negative

• massive

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NGSS.MS-PS2-3

Which is an electron?

• A
• B
• C

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NGSS.MS-PS1-1

The particles with no charge in an atom are the _______.

• electrons
• neutrons
• protons
• protons and neutrons

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NGSS.MS-PS1-1

What does the 1.00794 stand for?

• Hydrogen

• atomic number

• atomic mass

• atomic explosion

Tags

NGSS.MS-PS1-1