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Flashcards in Atoms Deck (16):
1

What is an element?

A substance that contains only one type of atom.

2

What are compounds?

Two or more elements chemically bonded.

3

What is a mixture?

Two or more elements that are physically bonded.

4

What is fractional distillation?

Fractional distillation is the separation technique used to separate fractions with different boiling points.

5

What is chromatography?

The separation technique used to separate different dyes into the colours used to make them.

6

What is an ionic bond?

When a metal and a non-metal react it forms an ionic bond because, the metal loses an atom to gain a full outer shell (valence shell).

7

What are the first three elements in group 1?

Lithium, Sodium, Potassium.

8

What are the first four elements in group 4?

Fluorine, Chlorine, Bromine, Iodine.

9

Why is mercury not a typical transition element?

Mercury is not solid at room temperature.

10

What are the three states of matter and their state symbols?

Solid=(s).
Liquid=(l).
Gas=(g).

11

What are the charges of ions in group 1?

+1.

12

What are the charges of ions in group 2?

+2.

13

What are charges of ions in group 6?

-2.

14

What are the charges of ions in group 7?

-1.

15

What are hydrocarbons?

Compounds consisting of only Carbon and Hydrogen atoms.

16

What is cracking?

Breaking larger hydrocarbons down into smaller hydrocarbons.