Question

First 30 elements with their symbol And valency

Answer 1

Explanation:

1) Hydrogen (H)

Atomic Number: 1

Valency = 1

2)Helium (He)

Atomic Number: 2

Valency = 0

3)Lithium(Le)

Atomic Number: 3

Valency = 1

4)Beryllium(Be)

Atomic Number: 4

Valency = 2

5)Boron(B)

Atomic Number: 5

Valency = 3

6)Carbon(C)

Atomic Number: 6

Valency = 4

7)Nitrogen(N)

Atomic Number: 7

Valency = 3

8)Oxygen(O)

Atomic Number: 8

Valency = 2

9)Fluorine(F)

Atomic Number: 9

Valency = 1

10)Neon (Ne)

Atomic Number: 10

Valency = 0

11)Sodium(Na)

Atomic Number: 11

Valency = 1

12) Magnesium(Mg)

Atomic Number: 12

Valency = 2

13) Aluminium(Al)

Atomic Number: 13

Valency = 3

14) Silicon(Si)

Atomic Number: 14

Valency = 4

15) Phosphorus(P)

Atomic Number: 15

Valency = 5 , 3

16) Sulphur(S)

Atomic Number: 16

Valency = 2

17) Chlorine(Cl)

Atomic Number: 17

Valency = 1

18) Argon(Ar)

Atomic Number: 18

Valency = 0

19) Potassium(K)

Atomic Number: 19

Valency = 1

20) Calcium (Ca)

Atomic Number: 20

Valency = 2

21) Scandium (Sc)

Atomic Number: 21

Valency = 3

22) Titanium (Ti)

Atomic Number: 22

Valency = 4

23) Vanadium (V)

Atomic Number: 23

Valency = 5 , 4

24) Chromium (Cr)

Atomic Number: 24

Valency = 2

25)Manganese(Mn)

Atomic Number: 25

Valency = 7 , 4 , 2

26)Iron (Fe)

Atomic Number: 26

Valency = 2 , 3

27) Cobalt (Co)

Atomic Number: 27

Valency = 3 , 2

28)Nickel (Ni)

Atomic Number: 28

Valency = 2

29)Copper (Cu)

Atomic Number: 29

Valency = 2 , 1

30)Zinc(Zn)

Atomic Number: 30

Valency = 2

4.7

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Hard Worker!, Well written ! :)

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Fuschia

1) Hydrogen (H)

Atomic Number -- 1

Valency -- 1

2) Helium (He)

Atomic Number --2

Valency -- 0

3) Lithium (Le)

Atomic Number -- 3

Valency -- 1

4) Beryllium (Be)

Atomic Number -- 4

Valency -- 2

5) Boron (B)

Atomic Number-- 5

Valency -- 3

6)Carbon(C)

Atomic Number: 6

Valency = 4

7) Nitrogen (N)

Atomic Number --7

Valency --  3

8) Oxygen (O)

Atomic Number --8

Valency --2

9) Fluorine (F)

Atomic Number -- 9

Valency  --1

10) Neon (Ne)

Atomic Number -- 10

Valency -- 0

11)Sodium (Na)

Atomic Number --11

Valency -- 1

12) Magnesium (Mg)

Atomic Number -- 12

Valency -- 2

13) Aluminum (Al)

Atomic Number -- 13

Valency -- 3

14) Silicon (Si)

Atomic Number -- 14

Valency -- 4

15) Phosphorus (P)

Atomic Number -- 15

Valency -- 5 , 3

16) Sulfur (S)

Atomic Number -- 16

Valency -- 2

17) Chlorine (Cl)

Atomic Number -- 17

Valency -- 1

18) Argon (Ar)

Atomic Number -- 18

Valency -- 0

19) Potassium (K)

Atomic Number --19

Valency -- 1

20) Calcium (Ca)

Atomic Number -- 20

Valency -- 2

21) Scandium (Sc)

Atomic Number -- 21

Valency -- 3

22) Titanium (Ti)

Atomic Number --22

Valency -- 4

23) Vanadium (V)

Atomic Number --23

Valency -- 5 , 4

24) Chromium (Cr)

Atomic Number --24

Valency --  2

25) Manganese (Mn)

Atomic Number -- 25

Valency -- 7 , 4 , 2

26) Iron (Fe)

Atomic Number -- 26

Valency -- 2 , 3

27) Cobalt (Co)

Atomic Number -- 27

Valency -- 3 , 2

28) Nickel (Ni)

Atomic Number -- 28

Valency -- 2

29) Copper (Cu)

Atomic Number -- 29

Valency  -- 2 , 1

30 ) Zinc (Zn)

Atomic Number --30

Valency -- 2

please give me a brainlist

Answer 2

★ $\large{\underline{\rm{\green{First\:30\:elements:-}}}}$

$\begin{tabular}{c | l | l}Atomic number & Element & Valency \\\cline{1-2} 1 & Hydrogen & 1\\2 & Helium & 0 \\3 & Lithium & 1 \\4 & Berrylium & 2 \\ 5 & Boron & 3\\ 6 & Carbon & 4 \\ 7 & Nitrogen & 3 \\ 8 & Oxygen & 2\\ 9 & Flourine & 1 \\ 10 & Neon & 0 \\ 11 & Sodium & 1 \\ 12 & Magnesium & 2 \\ 13 & Aluminium & 3 \\ 14 & Silicon & 4 \\ 15 & Phosphorus & 3 \\16 & Sulphur & 2 \\ 17 & Chlorine & 1\\ 18 & Argon & 0\\ 19 & Potassium & 1 \\ 20 & Calcium & 2 \\ 21 & Scandium & 3 \\ 22 & Titanium & 4 \\ 23 & Vanadium & 5, 4 \\ 24 & Chromium & 2 \\ 25 & Manganese & 7, 4, 2 \\ 26 & Iron & 2, 3 \\ 27 & Nicekl & 3, 2 \\ 28 & Cobalt & 2 \\ 29 & Copper & 2, 1 \\ 30 & Zinc & 2\end{tabular}$