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Chemistry work sheet 3

Author: aziz mona
Keywords: , , , , , , online teaching

0. Nucleus
1. Building up principle
2. Thomson
3. Bohr
4. Aristotle
5. Hund
6. Quantum
7. Element
8. Greek philosephers
9. ZnS
10. Proton
11. Electron
12. Shrodinger
13. Rutherford
14. Dalton
15. Boyle

0. Amount of energy that can be lost or gaind when electron transfer from one
1. Matter consists of 4 elements which are: air, water, dust and fire
2. Is found at the center of the atom where the atomic mass is concentrated insi
3. Gives the first atomic model
4. Gives the first deginition of element
5. Electrons occupy energy levels and sublevels according to its energy in an assi
6. Is a fluerecent material that glows at site of collision
7. A positively charged particle found inside the nucleous of the atom
8. Introduce the term atom
9. no electron pairing takes place until each orbital is ocupied by an electron
10. Carry out cathode ray experiment
11. Introduce the wave equation to locate the electron in the atom
12. Simple, pure form of matter that cannot be changed into simpler form by n
13. A scientest who wons the Nobel price for his efforts to find the atomic model
14. Atom is complicated structure like solar system
15. Is a negatively charched particle that have also a wave properties