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E4L Atoms and nuclear reactions

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

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

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