C1.2.1 - Atomic Structure Flashcards Preview

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Flashcards in C1.2.1 - Atomic Structure Deck (21):
1

What are different elements made of?

Different atoms

2

Despite its size, do atoms have chemical properties?

Yes

3

How is a molecule made?

When 2 or more atoms join together

4

What are atom joined by to create molecules?

Attractive forces known as chemical bonds

5

What is an atomic radius?

Half the diameter of an atom

6

How do you calculate the atomic radius of an atom?

You either calculate the bond length or diameter and then half it.

7

What is a bond length?

The length between 2 centres of 2 atoms that are bonded together.

8

What is the typical length off atomic radii and bond lengths?

10 to the power of -10m

9

What are subatomic particles?

3 smaller particles in an atom

10

What are the 3 subatomic particles?

Protons
Neutrons
Electrons

11

Where are the protons and neutrons in an atom?

Joined together as a nucleus as a centre

12

Where are the electrons in an atom?

Travelling around the outside of the nucleus in waves.

13

What is the nucleus?

A combination of protons and neutrons in the centre of an atom

14

What is the relative mass of a proton?

+1

15

What is the relative charge of a neutron?

0

16

What is the relative charge of an electron?

-1

17

Why do atoms have no overall charge?

Because they contain the same amount of protons and electrons which cancel each other out

18

What is the relative mass of protons?

1

19

What is the relative mass of neutrons?

1

20

What is the relative mass of an electron?

0.0005

21

What is the relative mass of an electron as compared to a proton?

1/2000