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30 Cards in this Set

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  • Back

What charge do protons have?

+1

What's the relative mass of protons?

1

What is the atomic number

Proton Number / Electron Number

Where are protons found, in an atom?

In the nucleus

What charge do electrons have?

-1

What is the relative mass of an electron?

0

Where in an atom can you find the electrons?

Arranged in energy level shells

What charge do neutrons have?

0

What is the relative mass of a neutron?

1

What is the atomic mass?

The number of neutrons + The number of protons

Where in an atom can you find neutrons?

In the nucleus

What is 99% of an atom made up of?

Empty space

Define isotope

An atom with a different number of neutrons but the same number of protons

Define ion

An element with the same number of protons but a different number of electrons

Define cation

A positive ion

Define anion

A negative ion

Define Relative Isotopic Mass

The mass of a single atom, which can only be one isotope (nuclide) at a time, and is not an abundance weighted average

Define Relative Atomic Mass

The ratio of the average mass per atom of the naturally occuring form of an element to 1/12 the mass of Carbon-12

What is the rule for ions?

Gaining weight is a negative thing, losing weight is a positive thing

What does Ar mean?

Atomic mass

What does Mr mean?

Molecular mass

What charge do group 1 ions have?

+1

What charge do group 2 ions have?

+2

What charge do group 3 ions have?

+3

What charge do group 4 ions have?

+4 / -4

What charge do group 5 ions have?

-3

What charge do group 6 ions have?

-2

What charge do group 7 ions have?

-1

What charge do group 8 ions have?

0

What are the two rules for forming ionic equations?

• Split any aqueous, ionic compounds into their constituent ions



• Leave any covalent compounds alone