Elements MCQs with Answers

One-liner

The first element on the periodic table is Hydrogen.

One-liner

The valency of Hydrogen is 1 because it has only one electron in its outermost shell and needs to gain or share one electron to achieve a stable configuration.

One-liner

Magnesium (Mg) is not a compound; it is an element made up of only one type of atom.

One-liner

A total of 118 chemical elements have been discovered so far, out of which 94 occur naturally on Earth.

One-liner

The 6th period of the modern periodic table contains 32 elements.

One-liner

When hydrogen loses its electron to form H⁺ ion, it resembles alkali metals because both have a single positive charge and similar electronic configuration (ns⁰).

One-liner

The total number of noble gases in the periodic table is 7.

One-liner

Elements of the s-block all have the general electronic configuration ns¹/ns².

One-liner

The simplest kind of matter that cannot be broken down into simpler substances by chemical reactions is called an element.

One-liner

If the melting point of an element is above room temperature, that element will exist in solid state at room temperature.