write the 18 atomic number
aditya712086:
please give answer quickly
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I think argon is the answer
argon is a noble gas
argon is a noble gas
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ATOMIC NUMBER. ELEMENT. SYMBOL
1. Hydrogen H
2. Helium. He
3. Lithium. Li
4. Beryllium. Be
5. Boron. B
6. Carbon. C
7. Nitrogen. N
8. Oxygen. O
9. Fluorine. F
10. Neon. Ne
11. Sodium. Na
12. Magnesium. Mg
13. Aluminium. Al
14. Silicon. Si
15. Phosphorus. P
16. Sulphur. S
17. Chlorine. Cl
18. Argon. Ar
19. Potassium. K
20. Calcium. Ca
HOPE IT HELPS
THANKS
# BE BRAINLY #
1. Hydrogen H
2. Helium. He
3. Lithium. Li
4. Beryllium. Be
5. Boron. B
6. Carbon. C
7. Nitrogen. N
8. Oxygen. O
9. Fluorine. F
10. Neon. Ne
11. Sodium. Na
12. Magnesium. Mg
13. Aluminium. Al
14. Silicon. Si
15. Phosphorus. P
16. Sulphur. S
17. Chlorine. Cl
18. Argon. Ar
19. Potassium. K
20. Calcium. Ca
HOPE IT HELPS
THANKS
# BE BRAINLY #
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