The Periodic Table and its Development

?
An English scientist called John Newlands put forward his Law of '________' in 1864.
octaves
1 of 15
In 1869, a Russian scientist '_________' published his own periodic table.
mendeleev
2 of 15
The elements were put in order of the relative atomic '____'
mass
3 of 15
When protons, neutrons and electrons were discovered, elements were then ordered in atomic '______'.
number
4 of 15
The elements in a vertical column are in the same '______'.
group
5 of 15
All elements in a group have similar chemical '________'.
properties
6 of 15
Elements in a horizontal row are in the same '_____'.
period
7 of 15
The elements in group 1 are called the '______' metals.
alkali
8 of 15
The melting points and boiling points of group one '_______' as you go down the group.
decrease
9 of 15
As you go down group one, the metal's '_______' increases.
reactivity
10 of 15
Group 1 metals react with non-metals to form '______' compounds.
ionic
11 of 15
The elements in the centre of the periodic table - between groups 2 and 3 - are called the '_________' metals.
transition
12 of 15
Many transition metals act as '_______'.
catalysts
13 of 15
The elements in Group 7 are called the '_______'.
halogens
14 of 15
The molecules of group 7 elements are '_______'.
diatomic
15 of 15

Other cards in this set

Card 2

Front

In 1869, a Russian scientist '_________' published his own periodic table.

Back

mendeleev

Card 3

Front

The elements were put in order of the relative atomic '____'

Back

Preview of the front of card 3

Card 4

Front

When protons, neutrons and electrons were discovered, elements were then ordered in atomic '______'.

Back

Preview of the front of card 4

Card 5

Front

The elements in a vertical column are in the same '______'.

Back

Preview of the front of card 5
View more cards

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