the periodic table Flashcards Preview

Chemistry GCSE > the periodic table > Flashcards

Flashcards in the periodic table Deck (21):
1

what is in group 0 of the periodic table

non metals called the noble gases

2

why do elements near eachother in the periodic table have similar chemical properties

cause their atoms have the same number of electrons in the highest occupied energy lever

same number of electrons in outer shell

3

what is a vertical column of elements in the table called

a group

each group has same number of electrons in the outer shell, which gives them similar chemical properties

4

what does group 7 contain

very reactive non metals

halogens

5

what is in the centre of the periodic table

transition metals

6

why are group one called the alkali metals

they form alkaline compounds

7

what is the highest occupied energy level mean

outermost shell

8

what happens when a group 1 reacts with water

creates metal hydroxide and hydrogen

9

examples of elements in for up one

potassium, sodium, lithium

10

what happens when group one reacts with oxygen

creates metal oxide

11

why are group 0 called noble gases

they are very unreactive

they are stable

12

what are group 1 elements in the periodic table

alkali metals (reactive metals)

13

what are the rows in the periodic table called

a period

14

what do the same elements in a period have the same number of

occupied energy levels or shells

15

what are groups 1s stored under and why

oil

to prevent it from reacting with air and water

16

what are the rows in the periodic table called

a period

17

what do the same elements in a period have the same number of

occupied energy levels or shells

18

what are groups 1s stored under and why

oil

to prevent it from reacting with air and water

19

how do you work out the atomic number

the number of protons in an atom of an element

20

how do you work out the mass number

the sum of protons and neutrons

21

what are the elements in group 8 called

noble gases and they are all unteractive