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E4L Atoms and nuclear reactions

Author: Flavell Chris
Description:
Keywords: , , , , , , online teaching

Content:
Definitions:
0. Ion
1. Proton
2. 2.8.8.1
3. Beta
4. Nucleus
5. Half life
6. Electron
7. Isotope
8. Group
9. Nuclear fusion
10. Radioactive
11. Neutron
12. Alpha
13. Period
14. 2.8.18.32
15. 2.8.18.7

Answers:
0. Elements placed here based on no. of outer electrons
1. Its nature is an electron
2. Two nuclei join together to form a heavier nucleus
3. Elements placed here based on no. of e- shells
4. Atom with same atomic number but different mass number
5. Charged particle made by loss or gain of electrons
6. Negative charge with almost zero mass
7. The electron structure of K
8. Made of a helium nucleus (2p %2b 2n)
9. The electron structure of Br
10. The max numbers of electrons in shells 1-4
11. This is the feature that causes nuclei to decay
12. Positively charged particle
13. Discovered by the rutherford geiger marsden experiment
14. Has an atomic (proton) no. of 0 but a mass of 1
15. Time taken - half radioactive substance - decay by half
.