C4

?
  • Created by: zoe
  • Created on: 10-03-14 16:32
What do all the atoms of an element have the same number of?
Protons
1 of 44
What are different elements arranged in order of on the periodic table?
Increasing proton number
2 of 44
What is the number of protons the same as?
The number of electrons
3 of 44
What is a vertical column on the periodic table called?
Group
4 of 44
What is a horizontal column on the periodic table called?
Period
5 of 44
What does the group number of an element refer to?
The number of electrons in their outer shell
6 of 44
What does the period number of an element refer to?
How many shells an atom of that element has
7 of 44
What is the nucleus of an atom made up of?
Protons and neutrons
8 of 44
How are the electrons surrounding the nucleus of an atom arranged?
In shells
9 of 44
What does the light emitted from the flame of an element produce?
A characteristic line spectrum
10 of 44
What is the method of testing element flames called?
Spectroscopy
11 of 44
What does the electron configuration of an atom show?
How the electrons are arranged in shells around the nucleus
12 of 44
What shell is filled up by electrons first and why?
Closest to the nucleus as it has the lowest energy
13 of 44
How many electrons can the first shell hold?
Two
14 of 44
How many electrons can the second shell onwards hold?
8
15 of 44
Why is the total mass of the products of a chemical reaction always equal to the total mass of the reactants?
No atoms are lost or made
16 of 44
What are the six metals in group 1 called?
Alkali metals
17 of 44
What happens to the alkali metals as you go down the group?
Have a higher reactivity, have lower melting and boiling points, have a higher density
18 of 44
How many electrons do all alkali metals have on their outer shell?
One
19 of 44
Why do alkali metals become more reactive as you go down the group?
The outer shell gets further away from the nucleus so the outer electron is lost more easily
20 of 44
What can alkali metals form when they react?
Compounds
21 of 44
What do alkali metals create when they react with chlorine?
Salt
22 of 44
What do alkali metals create when they react with water?
A metal hydroxide and hydrogen gas
23 of 44
What is chlorine at room temperature?
A green gas
24 of 44
What is bromine at room temperature?
A brown liquid
25 of 44
What is iodine at room temperature?
A dark purple/grey solid
26 of 44
What do all halogens consist of?
Diatomic particles
27 of 44
What is meant by diatomic particles?
They only exist in pairs of atoms
28 of 44
What happens to halogens as you go down the group?
Lower reactivity, higher melting and boiling point, higher density
29 of 44
When halogens react with alkali metals what do they produce?
Halides
30 of 44
How many electrons do all halogens have in their outer shell?
Seven
31 of 44
Why do halogens become less reactive as you go down the group?
The outer shell gets further from the nucleus so an electron is less easily gained
32 of 44
What will a more reactive halogen do to a less reactive halogen?
Displace it
33 of 44
What do alkali metal and halogen reactions form?
Ionic compounds
34 of 44
Are halogen reactions with alkali metals highly endothermic or highly exothermic?
Exothermic
35 of 44
What can alkali metal and halogen compounds do when they're molten or dissolved in water?
Conduct electricity
36 of 44
What are halogen and alkali metal compounds made up of?
Ions
37 of 44
What are ions?
Atoms or groups of atoms that have gained or lost electrons
38 of 44
What do ions have because the number of protons and electrons is no longer equal?
An overall charge
39 of 44
What do atoms that lose electrons in ionic bonding become?
Positively charged ions
40 of 44
What do atoms that gain electrons in ionic bonding become?
Negatively charged ions
41 of 44
What does ionic binding occur between?
A metal and a non metal
42 of 44
What are compounds of group one and seven elements called?
Ionic compounds (salts)
43 of 44
Why do ionic compounds form crystals?
Because the ions are arranged into a regular lattice
44 of 44

Other cards in this set

Card 2

Front

What are different elements arranged in order of on the periodic table?

Back

Increasing proton number

Card 3

Front

What is the number of protons the same as?

Back

Preview of the front of card 3

Card 4

Front

What is a vertical column on the periodic table called?

Back

Preview of the front of card 4

Card 5

Front

What is a horizontal column on the periodic table called?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Science resources:

See all Science resources »See all Chemistry resources »