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Chemistry GCSE > atoms > Flashcards

Flashcards in atoms Deck (29):
1

where are the electrons in an atom

goingg around the nucleus

2

what's a protons relative charge

+1

3

what's a electrons relative charge

-1

4

what's a neutrons relative charge

no charge

5

what is an element

substance made from one type of atom

6

where are the metals on the periodic table

the left

7

where are the non mental a on the periodic table

the right

8

what are the letters on the periodic table

the elements chemical symbol

9

where are the transitional metals

the centre

10

if there are 10 electrons in an atom- how many protons?

10

always the same about of protons and electrons

balanced- no overall electrical charge

11

what is a compound

different types of atoms joined together.

chemical bonds hold them together

12

what does the nucleus contain

protons and neutrons

13

what is the mass number of an atom

the total number of protons and neutrons it contains

14

what is the atomic number of an atom

the number of protons it contains

15

what is bigger, the atomic number or the mass number

the mass number

16

how do you work out the number of neutrons in an atom

mass number - atomic number

17

what are shells

the rings of energy that the electrons create around the nucleus

18

how many electrons can the first shell have

2

19

how many electrons can every she'll have (apart from first)

8

20

things to remember when doing an electronic structure diagram

1. nucleus is a black spot

2. energy levels are circles around the nucleus

3. each electron is shows as a dot or a cross

21

how to use the periodic table to help with an elements electronic structure

1. find out what period it is in (number of shells)

2. find out what group it is in (number electrons in outer shell)

22

what are all substances made up of

atoms

23

how many different elements are there

about 100

24

what is the point of groups in periodic table

the groups contain elements with similar properties

25

what are all substances made up of

atoms

26

how many different elements are there

about 100

27

what is the point of groups in periodic table

the groups contain elements with similar properties

28

what is the overall charge of an atom

no charge

same amount of neutrons and electrons

29

do all atoms of the same element have the same number of protons

yes

atoms from different elements have different number of protons