Test 1: Chapters 1-4 Misc. Flashcards Preview

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Flashcards in Test 1: Chapters 1-4 Misc. Deck (10)
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1

Isotopes

atoms of the same element with the same atomic number but different number of neutrons

2

Ionic compounds

metal + nonmetal, have empirical formulas

3

Covalent molecules

nonmetal + nonmetal

4

Ionic bonding

strong electrical charges between opposite charges that hold ions together

5

Chemical Properties

can only be observed during a change in the identity of the substance under observation

6

Ions

electrical charges form when atoms gain or lose electrons

7

Chemical changes of matter

process that changes the identity of the substance being observed (reactions) e.g. rusting tarnishing, burning

8

Atomic number

# protons in an atom

9

Mass number

# protons + # neutrons

10

# neutrons in a nucleus

mass # - # protons