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E4L Atoms and nuclear reactions

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

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

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