atoms, ions, electrons Flashcards Preview

10 science- chemistry > atoms, ions, electrons > Flashcards

Flashcards in atoms, ions, electrons Deck (16)
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1
Q

what makes an atom neutral?

A

of protons = # of electrons

2
Q

what do atoms try to do with their electrons?

A

gain or lose to become stable

3
Q

what does an atom become when it gains/loses electrons?

A

an ion

4
Q

what 2 things does the movement of electrons allow?

A
  • atoms to form compounds

- chemical reactions to occur

5
Q

what is a valence shell?

A

the outermost energy level

6
Q

what is a valence electron?

A

the electrons on the outermost energy level

7
Q

which electrons can move?

A

the valence electrons

8
Q

when an atom loses electrons, what charge does it have?

A

positive

9
Q

when an atom gains electrons, what charge does it have?

A

negative

10
Q

what is a positively charged atom called?

A

cation

11
Q

what is a negatively charged atom called?

A

anion

12
Q

do metals gain or lose electrons?

A

lose

13
Q

do non-metals gain or lose electrons?

A

gain

14
Q

the ion formed has the same electron arrangement as ____

A

the closest noble gas (on the periodic table)

15
Q

what is isoelectric?

A

atoms and ions that have the same electric arrangement

16
Q

what is the difference between an atom and an ion?

A

an atom is neutral, an ion is charged