Question

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

Answer 1

Original Alphabetical Hydrogen (H)

Atomic Number: 1
Atomic Weight: 1

Helium (He)

Atomic Number: 2
Atomic Weight: 4

Lithium (Li)

Atomic Number: 3
Atomic Weight: 7

Beryllium (Be)

Atomic Number: 4
Atomic Weight: 9

Boron (B)

Atomic Number: 5
Atomic Weight: 11

Carbon (C)

Atomic Number: 6
Atomic Weight: 12

Nitrogen (N)

Atomic Number: 7
Atomic Weight: 14

Oxygen (O)

Atomic Number: 8
Atomic Weight: 16

Flourine (F)

Atomic Number: 9
Atomic Weight: 19

Neon (Ne)

Atomic Number: 10
Atomic Weight: 20

Sodium (Na)

Atomic Number: 11
Atomic Weight: 23

Magnesium (Mg)

Atomic Number: 12
Atomic Weight: 24

Aluminum (Al)

Atomic Number: 13
Atomic Weight: 27

Silicon (Si)

Atomic Number: 14
Atomic Weight: 28

Phosphorus (P)

Atomic Number: 15
Atomic Weight: 31

Sulfur (S)

Atomic Number: 16
Atomic Weight: 32

Chlorine (Cl)

Atomic Number: 17
Atomic Weight: 35.5

Argon (Ar)

Atomic Number: 18
Atomic Weight: 40

Potassium (K)

Atomic Number: 19
Atomic Weight: 39

Calcium (Ca)

Atomic Number: 20
Atomic Weight: 40

Scandium (Sc)

Atomic Number: 21
Atomic Weight: 45

Titanium (Ti)

Atomic Number: 22
Atomic Weight: 48

Vanadium (V)

Atomic Number: 23
Atomic Weight: 51

Chromium (Cr)

Atomic Number: 24
Atomic Weight: 52

Manganese (Mn)

Atomic Number: 25
Atomic Weight: 55

Iron (Fe)

Atomic Number: 26
Atomic Weight: 56

Cobalt (Co)

Atomic Number: 27
Atomic Weight: 59

Nickel (Ni)

Atomic Number: 28
Atomic Weight: 59

Copper (Cu)

Atomic Number: 29
Atomic Weight: 64

Zinc (Zn)

Atomic Number: 30
Atomic Weight: 65

Gallium (Ga)

Atomic Number: 31
Atomic Weight: 70

Germanium (Ge)

Atomic Number: 32
Atomic Weight: 73

Arsenic (As)

Atomic Number: 33
Atomic Weight: 75

Selenium (Se)

Atomic Number: 34
Atomic Weight: 79

Bromine (Br)

Atomic Number: 35
Atomic Weight: 80

Krypton (Kr)

Atomic Number: 36
Atomic Weight: 84

Rubidium (Rb)

Atomic Number: 37
Atomic Weight: 85

Strontium (Sr)

Atomic Number: 38
Atomic Weight: 88

Yttrium (Y)

Atomic Number: 39
Atomic Weight: 89

Zirconium (Zr)

Atomic Number: 40
Atomic Weight: 91