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E4L Atoms and nuclear reactions

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

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

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