Chapter 1, history / Foundations of chemistry Flashcards Preview

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Flashcards in Chapter 1, history / Foundations of chemistry Deck (11):
1

protons

have a positive charge

2

neutron

neutral charge

3

electrons

negative charge

4

atomic number

number of protons

5

mass number

from protons and neutrons (p + n), can vary

6

net charge

number of electrons, lose electron then net charge become positive

7

isotopes

atom with same number of protons, but different number of neutrons

8

ions

atoms where total number of electrons does not equal total number of protons

9

anion

negative charge, gained electrons

10

cation

positive charge, lost electrons

11

mole

quantity of molecules = 6.022 times 10 to the 23rd. abbreviation: mol