Online teaching

Online teaching with Kubbu

To view this page you need to install Adobe Flash Player


E4L Atoms and nuclear reactions

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

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

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