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Flashcards in Chem Exam Deck (45)
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1

Chemistry

Science that studies the composition, structure, properties, and change of matter

2

Subatomic particles

Protons, neutrons, electrons

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How to find the number of protons:

Atomic #

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How to find the number of neutrons

Mass # - atomic #

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How to find # of electrons

Atomic #

6

Name the chemical families from left to right

Alkali metals
Alkaline earth metals
Transition metal family
Boron
Carbon
Nitrogen
Calcogen
Halogen
Noble gas

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What are rows called on the periodic table?

Periods

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What are columns called on the periodic table?

Chemical families

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What are valence shells?

Outer shell of any atom

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What are metals and where are they found?

The transfer electrons

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What are non-metals?

They gain electrons

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What family is the most reactive?

Alkali metals

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What are stable octects?

Octect rule- elements gain or loose electrons to attain an electron configuration of the nearest noble gas

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What family is considered to be the most stable and why?

Noble gases because they have all their outer electron shells filled

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What is matter? 3 states of matter?

Anything that has mass and takes up space
- solid
- liquid
- gas

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Elements

Made entirely from one type of atom

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Compound

A molecule that contains at least 2 elements

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3 different types of compounds:

- acids
- ionic compounds
- molecular compounds

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What info does a Bohr model show?

-the amount of shells an element has
- you can tell how reactive an element is
-shows electrons, neutrons, protons

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Ion

Charged atom

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Cation

Positive charged ion

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Anion

Negatively charged ion

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Combining capacity

The number of electrons elements lose, gain or share to create a full valence shell

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Atoms that loose electrons are...

Positive

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What is an ionic compound?

When metals react with non metals, electrons are transferred from the metal atom to the non metal atom forming ions

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What is an ionic bond?

A strong electrostatic force of attraction between metal and non metal atoms

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What are metalloids

They have the least amount of elements

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What it mean for an element to be reactive

Elements that are short one or two electrons or have an extra electron from a valence shell are very reactive

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What are metalloids

They have the least amount of elements

30

What it mean for an element to be reactive

Elements that are short one or two electrons or have an extra electron from a valence shell are very reactive