Hydrogen, iron, and gallium is the correct answer. Hence, option B is correct.
An electron is a negatively charged subatomic particle.
Let us take another look at the periodic table. The periodic table is composed of metals, metalloids and nonmetals.
Metals lose electrons more easily, that is why they form cations. Metals are found on the left-hand side of the periodic table.
As we move away from the left-hand side of the periodic table, the ability to form cations decreases as metallic character decreases and elements become more nonmetallic.
The noble gas helium rarely loses electrons. Fluorine would rather accept an electron to form a negative ion.
Hence, the elements hydrogen, iron and gallium are metals hence they lose electrons more easily.
Hence, option B is correct.
Learn more about the electrons here:
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