Elements MCQs

Here is collection of multiple-choice questions (MCQs) on Elements that explores topics such as their properties, classification, and roles in chemical reactions.

These MCQs will help you prepare for an exam or seeking to deepen your understanding of chemistry, these MCQs offer valuable learning opportunities for students and enthusiasts alike.

Let’s dive into the MCQs below and expand your knowledge of the building blocks of matter!

MCQ on Elements

Each row of the periodic table is called?

period
group
rank
All of these

Correct Answer

period

Each column of the periodic table is called?

period
group
rank
All of these

Correct Answer

group

The size of the atom _____ from top to bottom within each column

increases
Decreases
Remains same
None of these

Correct Answer

increases

Elements are fundamental substances that cannot be broken down into simpler substances by chemical means. They consist of atoms with the same number of protons in their nuclei.

_____ ions joining to form table salt

Carbonate and bicarbonate
Sulphate and chloride
Sodium and chloride
Calcium and potassium

Correct Answer

 Sodium and chloride

Sodium and chloride ions joining to form _____

protein
table salt
carbohydrate
DNA

Correct Answer

table salt

Sodium ion has _____ charge

Positive
Negative
Neutral
None of these

Correct Answer

Positive

chloride ion has _____ charge

Positive
Negative
Neutral
None of these

Correct Answer

Negative

Number of protons in sodium is?

11
13
43
23

Correct Answer

11

Number of protons in chlorine is?

11
13
35
23

Correct Answer

35

Number of protons in oxygen is?

11
8
35
23

Correct Answer

8

Between 2 oxygen atoms, there is?

Ionic bond
Covalent bond
Metallic bond
None of these

Correct Answer

Covalent bond

atomic number is the number of _____ in the nucleus of an atom of a particular element

Neutrons
Leptons
neutrinos
Protons

Correct Answer

Protons

_____ is the number of in the nucleus of an atom of a particular element

atomic number
Atomic volume
atomic density
Atomic mass

Correct Answer

atomic number 

Symbol of carbon is?

D
Cr
C
Cb

Correct Answer

C

carbon (the letter C in the periodic table) has _____ protons in the nucleus of one atom

4
6
65
11

Correct Answer

6

All atoms of an element have the same number of protons, but the number of neutrons can change. If the number of neutrons is different between two atoms of the same element, the atoms are called _____ of the element.

Thermotopes
Metatopes
isen tropes
isotopes

Correct Answer

isotopes

Carbon has _____ isotopes

2
3
4
5

Correct Answer

2

The _____ of an element is the average mass of all the isotopes of that element, taking into account their relative abundance

atomic number
Atomic volume
atomic density
Atomic mass

Correct Answer

Atomic mass

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