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Vertical columns of the periodic table are called ____ and includes elements with the same number of electrons in their outer shells.
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molecules
particle accelerator
synthesis
shell
nucleus
chemical change
groups
When the atoms outermost shell is completely filled withe electrons, we call this....
closed
molecules
particle accelerator
synthesis
shell
nucleus
chemical change
groups
When chemicals join to form a new substance we call this reaction a _____ reaction.
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molecules
particle accelerator
synthesis
shell
nucleus
chemical change
groups
Atoms may join with other atoms to form units called _____.
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molecules
particle accelerator
synthesis
shell
nucleus
chemical change
groups
What do we call the cloud-like space surrounding the nucleus of an atom?
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molecules
particle accelerator
synthesis
shell
nucleus
chemical change
groups
When atoms join with different types of atoms and have a reactions we call this a _____ change.
closed
molecules
particle accelerator
synthesis
shell
nucleus
chemical change
groups
What do we call the center section of an atom
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molecules
particle accelerator
synthesis
shell
nucleus
chemical change
groups
What machine can smash an atom?
closed
molecules
particle accelerator
synthesis
shell
nucleus
chemical change
groups
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