Chemistry C1

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An element has the electronic structure 2,8,4. Which group is it in?
Group 4
1 of 6
Two elements have these electronic structures: 2,1 and 2,8,1. What can you say about the elements?
They are both in Group 1.
2 of 6
What do the elements in a group have the same number of?
The elements in a group have the same number of electrons in the highest occupied energy level or outer shell.
3 of 6
What do the elements in a period have the same number of?
occupied energy levels or shells
4 of 6
When an element from group 1 reacts with water:
The electronic structure of the noble gas helium is 2.
5 of 6
Why is sodium stored under oil?
to keep it away from air and water
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Other cards in this set

Card 2

Front

Two elements have these electronic structures: 2,1 and 2,8,1. What can you say about the elements?

Back

They are both in Group 1.

Card 3

Front

What do the elements in a group have the same number of?

Back

Preview of the front of card 3

Card 4

Front

What do the elements in a period have the same number of?

Back

Preview of the front of card 4

Card 5

Front

When an element from group 1 reacts with water:

Back

Preview of the front of card 5
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