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3 years ago

Write the atomic number, atomic mass, number of protons, electrons and neutrons for the first five elements

Chemistry

1 answer:

stepladder [879]3 years ago

8 0

Answer:

The first five elements of the periodic table are:- hydrogen, helium, lithium, beryllium, boron

Explanation:

atomic number- it is represented by the letter Z. It is basically the total number of protons present in each atom's nucleus of that element.

atomic mass- is the mass of a single atom present in the element.

electrons and protons- they are negatively and positively charged particles found in the nucleus of the atom respectively.

neutrons- they have no or zero charge and weigh more than protons.

hydrogen (H)- 1 | 1.008 | 1 | 1 | 0

helium (He) - 2 | 4.0026 | 2 | 2 | 2

Lithium (Li) - 3 | 6.94 | 3 | 3 | 4

beryllium (Be) - 4 | 9.0122 | 4 | 4 | 5

Boron ( B) - 5 | 10.81 | 5 | 5 | 6

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