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E4L Atoms and nuclear reactions

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

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

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