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12 June, 06:41

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

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  1. 12 June, 06:57
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    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.

    element | atomic number | atomic mass | electrons | protons | neutrons

    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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