B. Write the names of first twenty elements with protons, neutrons and electrons.
Answers
One common chemistry assignment is to name or even memorize the first 20 elements and their symbols. The elements are ordered in the periodic table according to increasing atomic number. This is also the number of protons in each atom.
These are the first 20 elements, listed in order:
H - Hydrogen
He - Helium
Li - Lithium
Be - Beryllium
B - Boron
C - Carbon
N - Nitrogen
O - Oxygen
F - Fluorine
Ne - Neon
Na - Sodium
Mg - Magnesium
Al - Aluminum
Si - Silicon
P - Phosphorus
S - Sulfur
Cl - Chlorine
Ar - Argon
K - Potassium
Ca - Calcium
Hope it helps you please mark me as the brainliest
Answer:
Hydrogen, H
1 proton, 1 electron, 0 neutrons
Helium, He
2 protons, 2 electrons, 2 neutrons
Lithium, Li
3 protons, 3 electrons, 4 neutrons
Beryllium, Be
4 protons, 4 electrons, 5 neutrons
Boron, B
5 protons, 5 electrons, 6 neutrons
Carbon, C
6 protons, 6 electrons, 6 neutrons
Nitrogen, N
7 protons, 7 electrons, 7 neutrons
Oxygen, O
8 protons, 8 electrons, 8 neutrons
Fluorine, F
9 protons, 9 electrons, 10 neutrons
Neon, Ne
10 protons, 10 electrons, 10 neutrons
Sodium, Na
11 protons, 11 electrons, 12 neutrons
Magnesium, Mg
12 protons, 12 electrons, 12 neutrons
Aluminium, Al
13 protons, 13 electrons, 14 neutrons
Silicon, Si
14 protons, 14 electrons, 14 neutrons
Phosphorus, P
15 protons, 15 electrons, 16 neutrons
Rest are on pictures
