1. From the Desk of OnyangoNgoye For Form One term three.
Atomic Structure

2. What are the 3 major parts of an atom?
Proton
Neutron
Electron

3. Draw a diagram showing the location of each part of the atom.

4. Draw a diagram showing the location of each part of the atom.
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5. Draw a diagram showing the location of each part of the atom.

6. Draw a Diagram of an Atom

7. Draw a diagram showing the charges of each part of the atom.

8. Describe Proton
Protons are positively charged particles found in the atomic nucleus.
Protons were discovered by Ernest Rutherford.

9. Neutrons Neutrons are uncharged particles found in the atomic nucleus.
Neutrons were discovered by James Chadwick in 1932.

10. Electrons
1.Electrons are negatively charged particles that surround the atom's nucleus.
2.Electrons were discovered by J. J. Thomson in 1897.
3.Electrons determine properties of the atom.
4.Chemical reactions involve sharing, loosing & gaining of electrons.

11. Nucleus 1.The nucleus is the central part of an atom.
2. It is composed of protons and neutrons.
3.The nucleus contains most of an atom's mass.
4.It was discovered by Ernest Rutherford in 1911.

12. Isotopes
Atoms that have the same number of protons but different numbers of neutrons called Isotopes.

13. Example of Isotope

14. What is Electron Configuration?
Arrangement of electrons around the nucleus of an atom. It takes the order of 2:8:8:18. for the first four energy levels.
Arrangement of electrons around the nucleus of an atom. It takes the order of 2:8:8:18. For the First four energy levels.

15. Donge