Question

Elements are made up of the same kind of atoms.
(A) True
(B) False

Answer 1

Hint: Any substance which cannot be decomposed by ordinary chemical processes into simpler substances is known as an element. The fundamental materials of which all matter is composed are elements. Atoms of an element are identical to each other.

Complete answer:
The building blocks of matter are atoms. These are the smallest and tiniest individual particles that make up a substance. Atoms do not exist in the form of ions or molecules independently. The size of an isolated atom cannot be measured.
An element is a substance entirely made from one type of atom. The hydrogen element, for example, is made from atoms containing only one proton and one electron. You would notice that most of the atoms have no neutrons, some of them have one neutron and a few of them have two neutrons if you look at the atoms in a hydrogen sample. These various hydrogen versions are called isotopes. All isotopes of a specific element have the same number of protons, but they can have different neutron numbers.
If you change the number of protons of an element, then you are actually changing the type of element. If you change the number of neutrons, then a new isotope of the element is formed.
Hence, the correct option is (A).

Note:
The chemical element was first introduced by Robert Boyle, an English scientist. He defined an element as an "incapable of decomposition" substance. The definition of Boyle comes admirably close to today's theory. Elements in today's laboratories have been altered, though not by any chemical means. All the known elements are now represented in a tabular form known as The Periodic Table of Elements.