Online teaching



To use this application you need to install and activate Adobe Flash Player


Get Adobe Flash player .













































































































E4L Atoms and nuclear reactions

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

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

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