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Atomic Structure - PowerPoint PPT Presentation


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Atomic Structure. Visit www.worldofteaching.com For 100’s of free powerpoints. Name: Proton. Mass: 1 Charge: +1. Name: Neutron. Mass: 1 Charge: 0. Name: Electron. Mass: 1/2000 Charge: -1. All atoms are made up of just 3 basic sub-atomic particles:-. Mass Number. H. 1.

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slide1

Atomic Structure

Visit www.worldofteaching.com

For 100’s of free powerpoints

slide2

Name: Proton. Mass: 1 Charge: +1

Name: Neutron. Mass: 1 Charge: 0

Name: Electron. Mass: 1/2000 Charge: -1

All atoms are made up of just 3 basic sub-atomic particles:-

slide3

Mass Number

H

1

1

Atomic Number

The Simplest Atom

Name: Hydrogen

Atomic Symbol: H

Mass Number (Number of Protons + Neutrons) = 1

Atomic Number (Number of Protons) = 1

slide4

He

4

2

The Next Simplest Atom

Name: Helium

Atomic Symbol: He

The centre of an atom is called the NUCLEUS

A Helium atom has two protons and two neutrons in its nucleus

slide5

Li

7

3

The Next Simplest Atom

Name: Lithium

Atomic Symbol: Li

The orbit nearest the nucleus can only contain 2 electrons

so the third electron must be in a new orbit.

Electron Configuration: 2,1

slide6

Be

9

4

This orbit

has room for 8 electrons

The Next Simplest Atom

Name: Beryllium

Atomic Symbol: Be

Electron Configuration: 2,2

slide7

B

11

5

5p

6n

The Next Simplest Atom

Name: Boron

Atomic Symbol: B

Electron Configuration: 2,3

slide8

For the next 13 elements (Carbon to Argon)

draw their atomic structure and give details

as for Boron.

See the Periodic Table on p113 of your school planner

or the inside back cover of your Revision Guide.