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Physical Science Week 2: All About Matter

Across
When two or more atoms link together, they make a ________.
A __________ is formed when two atoms come together and share electrons.
A combination of one carbon atom and two oxygen atoms (CO2)
What spins around the nucleus of an atom?
Down
Molecules that are made up of different atoms
She discovered radioactive elements and won a Nobel Prize for the discovery
The center of an atom where the neutrons and protons exist