Topic 1 Flashcards

1
Q

What is the element definition

A

An element is a substance that consists of only one type of atom and it cannot be broken down into anything simpler by chemical means

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2
Q

What Is an atom

A

An atom is the simplest particle of an element that can exist on its own.

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3
Q

What is a molecule?

A

A molecule has two or more atoms joined together

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4
Q

Hydrogen

A

H

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5
Q

Lithium

A

Li

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6
Q

Sodium

A

Na

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7
Q

Potassium

A

K

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8
Q

Magnesium

A

Mg

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9
Q

Calcium

A

Ca

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10
Q

Barium

A

Ba

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11
Q

Aluminium

A

Al

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12
Q

Iron

A

Fe

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13
Q

Silver

A

Ag

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14
Q

Carbon

A

C

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15
Q

Silicon

A

Si

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16
Q

Lead

A

Pb

17
Q

Nitrogen

A

N

18
Q

Phosphorus

A

P

19
Q

Oxygen

A

O

20
Q

Sulfur

A

S

21
Q

Chlorine

A

Cl

22
Q

Bromine

A

Br

23
Q

Iodine

A

I

24
Q

What is a compound?

A

A compound is a substance formed when two or more (different) elements are chemically combined

25
Q

What is a mixture

A

A mixture is two or more substances mixed together which are usually easy to separate