Question

Which of the following is not a property of elements?
A. They are made up of one kind of atoms
B. They cannot be broken down
C. They have their own set of properties
D. None of the above

Answer 1

Elements are arranged in a tabular form called periodic table and there are 115 elements present in the periodic table. There are similarities as well as differences in the properties of these elements. On the basis of these properties elements can be divided into metals and non-metals.

Complete answer:
There are a total 92 elements out of which 70 are metals. While non-metal elements are those that do not possess the properties of metal. These are arranged on the left side of the periodic table. And there are 22 non-metals in the periodic table.
Modern periodic table given by Mendeleev consists of 18 vertical columns known as groups arranged as left to right and seven horizontal rows known as periods arranged from top to bottom. In this periodic table elements are arranged according to their atomic number and this table divides the elements into s, p, d and f-block elements on the basis of their valence shell electrons.
Elements are generally those types of compounds which are made up of the same type of atoms and it cannot break down into other parts and they have their own set of properties. Hence we can say that all properties are true for elements.

Thus option D is the correct answer.

Note:
The elements in periodic table are placed according to their atomic number and their reoccurrence properties and atomic size decreases as we move from left to right in the periodic table this can be explained on the basis of effective nuclear charge and atomic size increases as we move down the group this is due to the increase in the number of shells.