Name of first twenty elements with their estimated Mass number
Answers
Answer:Since protons and neutrons account for almost all of the mass of the given atom, the atomic mass of a given element is almost equal to its mass number....Explanation:ATOMIC NUMBER ELEMENT ATOMIC MASS1
Hydrogen 1.0082
Helium 4.00263
Lithium 6.944
Beryllium 9.01225
Boron 10.816
Carbon 12.0117
Nitrogen 14.0078
Oxygen 15.9999
Fluorine 18.99810
Neon 20.18011
Sodium 22.99012
Magnesium 24.30513
Aluminium 26.98214
Silicon 28.08515
Phosphorus 30.97416
Sulfur 32.0617
Chlorine 35.4518
Argon 39.94819
Potassium 39.09820
Calcium 40.07821
Scandium 44.95622
Titanium 47.86723
Vanadium 50.94224
Chromium 51.99625
Manganese 54.93826
Iron 55.84527
Cobalt 58.93328
Nickel 58.69329
Copper 63.54630
Zinc 65.38 ........I hope you understand so please mark me as a brilliant and follow me dear
Answer:
hydrogen=1
helium=2
lithium=3
beryllium=4
boron=5
carbon=6
nitrogen=7
oxygen=8
fluorine=9
neon=10
sodium=11
magnesium=12
aluminum=13
silicon=14
Phosphorus=15
Sulphur=16
chlorine=17
argon=18
potassium=19
calcium=20