Question

symbols,radicals,atomic no of 20 elements

can u say this for me plzz​

Answer 1

Answer: all elements in this periodic table

Explanation:

study these elements✍

good luck !!!!!

Answer 2

1. hydrogen

symbol H atomic no 1

2. helium

symbol He atomic no 2

3. lithium

symbol li atomic no 3

4. beryllium atomic no 4

symbol Be

5. boron atomic no 5

symbol B

6. carbon atomic no 6

symbol c

7. nitrogen atomic no 7

symbol n

8. oxygen atomic no 8

symbol o

9. fluorine atomic no 9

symbol f

10 neon atomic no 10

symbol ne

11 sodium atomic no 11

symbol na

12 magnesium atomic no 12

symbol mg

13 aluminium atomic no 13

symbol al

14 silicon atomic no 14

symbol si

15 phosphorus atomic no 15

symbol p

16 sulphur atomic no 16

symbol s

17 chlorine atomic no 17

symbol cl

18 argon atomic no 18

symbol ar

19 potassium atomic no 19

symbol k

20. calcium atomic no 20

symbol ca

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