C1.1 Atomic Structure Flashcards Preview

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Flashcards in C1.1 Atomic Structure Deck (12)
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1

What is the largest amount of electrons you can have in each outer shell?

2 in first shell
8 in second and third shells

2

What is the arrangement of electrons in Mg?

2,8,2

3

What is the nucleus of an atom?

The centre of the atom which contains protons and neutrons

4

How do you calculate the mass of an atom?

The mass number of an atom is the larger number in the periodic table

5

Which subatomic particle is positive?

Proton

6

What does the number of electrons in the outer shell tell you about an element?

The group it is in.

7

How many protons, neutrons and electrons does carbon-12 have?

6 protons, 6 neutrons and 6 electrons

8

What is the charge on a neutron?

0

9

What is the charge of an electron?

-1

10

Why are the noble gases unreactive?

They have a full outer shell of electrons.

11

What does the atomic number tell you?

The number of protons in an atom

12

How do you calculate the number of electrons in atom of an element?

The number of electrons are the same as the number of protons which you work out from the atomic number.