Question

First 20 elements no of protons electrons amd neutrons list

Answer 1

First 20 elements are:

1. HYDROGEN: contains 1 proton only.
2. HELIUM: contains 2 electrons, 2 protons and 2 neutrons in general.
3. LITHIUM: contains 3 electrons, 3 protons and 4 neutronsas per the latest resaerch.
4. BERRYLIUM: Contains 4 protons, electrons each and 5 neutrons.
5. BORON: Contains 5 protons and electrons each and 5 neutrons.
6. CARBON: Contains 6 electrons and protons each and 6 neutrons.
7. NITROGEN: Contains 7 electrons, protons each and 8 neutrons.
8. OXYGEN: Contains 8 electrons and protons eachand 8 neutrons.
9. FLUORINE: Contains 9 electrons, protons each and 10 neutrons.
10. NEON: Contains 10 electrons , protons each and 10 neutrons.
11. SODIUM: Contains 11 electrons, protons each and 12 neutrons.
12. MAGNESIUM: Contains 12 electrons, protons each and 12 neutrons.
13. ALUMINIUM: Contains 13 electrons, protons and 14 neutrons.
14. SILICON: Contains 14 electrons, protons each and 14 neutrons.
15. PHOSPHOROUS: Contains 15 electrons , protons each and 17 neutrons.
16. SULFUR: Contains 16 electrons, protons each and 16 neutrons.
17. CHLORINE: Contains 17 elctrons, protons each and 18 neutrons.
18. ARGON: Contains 18 electrons, protons each and 22 neutrons.
19. POTASSIUM: Contains 19 electrons, protons each and 20 neutrons.
20. CALCIUM: Contains 20 electrons, protons and 28 neutrons.

Answer 2

Answer:

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