Reorder the elements aluminum, oxygen, fluorine, calcium, and hydrogen from the least to the greatest number of protons. Use the periodic table if needed.

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asked Oct 15, 2016 24.2k views

2 Answers

Smt · Answer 1 · 2016-10-20T01:38:15+0000

Step-by-step explanation:

Atomic number means the sum of total number of protons present in an element.

Atomic number of aluminium is 13. So, it has 13 protons.

Atomic number of oxygen is 8. So, it has 8 protons.

Atomic number of fluorine is 9. So, it has 9 protons.

Atomic number of calcium is 20. So, it has 20 protons.

Atomic number of hydrogen is 1. So, it has 1 proton.

Hence, the given elements are arranged from the least to the greatest number of protons as follows.

Hydrogen < Oxygen < Fluorine < Aluminium < Calcium