Question

please!! Urgent - tell me 1 to 40 elements with their atomic number and mass number

Answer 1

Hydrogen (H)

Atomic Number: 1
Atomic Weight: 1

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Helium (He)

Atomic Number: 2
Atomic Weight: 4

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Lithium (Li)

Atomic Number: 3
Atomic Weight: 7

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Beryllium (Be)

Atomic Number: 4
Atomic Weight: 9

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Boron (B)

Atomic Number: 5
Atomic Weight: 11

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Carbon (C)

Atomic Number: 6
Atomic Weight: 12

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Nitrogen (N)

Atomic Number: 7
Atomic Weight: 14

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Oxygen (O)

Atomic Number: 8
Atomic Weight: 16

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Flourine (F)

Atomic Number: 9
Atomic Weight: 19

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Neon (Ne)

Atomic Number: 10
Atomic Weight: 20

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Sodium (Na)

Atomic Number: 11
Atomic Weight: 23

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Magnesium (Mg)

Atomic Number: 12
Atomic Weight: 24

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Aluminum (Al)

Atomic Number: 13
Atomic Weight: 27

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Silicon (Si)

Atomic Number: 14
Atomic Weight: 28

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Phosphorus (P)

Atomic Number: 15
Atomic Weight: 31

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Sulfur (S)

Atomic Number: 16
Atomic Weight: 32

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Chlorine (Cl)

Atomic Number: 17
Atomic Weight: 35.5

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Argon (Ar)

Atomic Number: 18
Atomic Weight: 40

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Potassium (K)

Atomic Number: 19
Atomic Weight: 39

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Calcium (Ca)

Atomic Number: 20
Atomic Weight: 40

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Scandium (Sc)

Atomic Number: 21
Atomic Weight: 45

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Titanium (Ti)

Atomic Number: 22
Atomic Weight: 48

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Vanadium (V)

Atomic Number: 23
Atomic Weight: 51

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Chromium (Cr)

Atomic Number: 24
Atomic Weight: 52

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Manganese (Mn)

Atomic Number: 25
Atomic Weight: 55

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Iron (Fe)

Atomic Number: 26
Atomic Weight: 56

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Cobalt (Co)

Atomic Number: 27
Atomic Weight: 59

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Nickel (Ni)

Atomic Number: 28
Atomic Weight: 59

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Copper (Cu)

Atomic Number: 29
Atomic Weight: 64

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Zinc (Zn)

Atomic Number: 30
Atomic Weight: 65

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Gallium (Ga)

Atomic Number: 31
Atomic Weight: 70

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Germanium (Ge)

Atomic Number: 32
Atomic Weight: 73

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Arsenic (As)

Atomic Number: 33
Atomic Weight: 75

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Selenium (Se)

Atomic Number: 34
Atomic Weight: 79

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Bromine (Br)

Atomic Number: 35
Atomic Weight: 80

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Krypton (Kr)

Atomic Number: 36
Atomic Weight: 84

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Rubidium (Rb)

Atomic Number: 37
Atomic Weight: 85

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Strontium (Sr)

Atomic Number: 38
Atomic Weight: 88

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Yttrium (Y)

Atomic Number: 39
Atomic Weight: 89

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Zirconium (Zr)

Atomic Number: 40
Atomic Weight: 91