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Chemistry > Atoms, Elements, Compounds > Flashcards

Atoms, Elements, Compounds Flashcards

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1
Q

Which scientist tried to explain about atoms?

A

Dalton

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2
Q

What are atoms?

A

They are tiny particles.

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3
Q

What are the 3 components of the Dalton model?

A
  1. All matter is made up of atoms
  2. There are different types of atom
  3. Each element contains a different type
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4
Q

How many types of atom does an element contain?

A

One

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5
Q

Elements have different

A

Properties

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6
Q

How many elements are there?

A

Over 100

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7
Q

What is the symbol for iron?

A

Fe

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8
Q

What is the symbol for carbon?

A

C

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9
Q

In the Periodic Table, the columns are called

A

Groups.

Elements in groups have similar properties

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10
Q

In the Periodic table, horizontal rows are called

A

Periods

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11
Q

What are on th far left of the periodic table?

A

Reactive metals

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12
Q

What is on the far right of the periodic table?

A

Noble gases

They are extremely unreactive

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13
Q

Group 1 is on the far left of the Periodic table. As ŷou go down the group, they get…

A

More reactive.

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14
Q

Group 7 in the.Periodic table. Are next to the Noble gases. As you go down the group, they become

A

Less reactive

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15
Q

Give 3 examples of Noble gases

A

Helium
Neon
Argon

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16
Q

Give 3 examples of very reactive metals

A

Lithium
Sodium
Potassium

17
Q

What is the symbol for potassium?

A

K

18
Q

What is the symbol for sodium?

A

Na

19
Q

In symbols, write out the compound, carbonate

A

CO3

3,is small. I can’t do it

20
Q

Write out sulfate

A

SO4

21
Q

What is the symbol for copper?

A

Cu

22
Q

If 2 identical elements combine, is it a compound?

A

No

23
Q

Mixtures are substances that are not

A

Chemically combined

Such as the gases in air

24
Q

Describe a common way of making a mixture

A

Dissolving

25
Q

What is the symbol for copper oxide?

A

CuO

26
Q

What is the symbol for carbon dioxide?

A

CO2

27
Q

The elements/substances which react together are called

A

Reactants

28
Q

The symbol for iron oxide is…

A

FeO

The symbol for magnesium oxide is MgO

29
Q

The green and blue parts of the Periodic table are

A

Non metals

30
Q

The blue group of the Periodic table are

A

The Noble gases

31
Q

What is the point of the Periodic table?

A

To predict patterns in chemical reactions

Such as how they react with water.

32
Q

What is the symbol for calcium?

A

Ca

Chemistry (6 decks)

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