Identify an anomaly element that belongs to both group 1 and group 17. [SICPO Paper I 2023]

Which non-metal among the following is poly-atomic? [Constable GD 2021]

Identify an element that does NOT belong to the third period. [Constable GD Examination 2022]

Which of the following is a soft metal that ignites in air and reacts violently with water and has atomic number 37 in the periodic table? [CHSL 2021 Tier I]

Which element of Group 17 has two isotopes of masses 35 and 37 amu with average abundance of 75.77% and 24.23%, respectively? [Combined Graduate Level Examination Tier I 2023]

Identify the chemical name for Ge.   [CHSL 2021 Tier I]

Which allotrope of carbon was discovered by Robert F Curl, Harold W Kroto and Richard E Smalley in 1985? [Combined Graduate Level Examination Tier I]

What will be the atomic number of an element X which is placed in period 2 and group 17? [Combined Graduate Level Examination Tier I 2023]

Which of the following metals is susceptible to fire if kept in the open?
[Constable GD 2021]

Which of the following are members of 15 naturally occurring metallic chemical elements whose atomic numbers are between 57 and 71? [Combined Graduate Level Examination Tier I 2022]

Which of the following elements is a member of the actinoid series? [SICPO Paper I 2023]

The mass number of titanium is: [Combined Graduate Level Examination Tier I 2022]

Identify the element that does NOT belong to Period 6 of Modern Periodic Table. [Combined Graduate Level Examination Tier I 2023]

Which of the following elements is a metalloid? [Combined Graduate Level Examination Tier I]

Which of the following groupsconsists of elements that are non-reactive, monoatomic elements with extremely low boiling points? [CHSL 2021 Tier I]

What is the atomic number of Carbon as per Mendeleev's Periodic Table? [MTS Non technical and Havaldar Examination 2021]

Identify the group of the periodic table to which cobalt belongs. [CHSL 2021 Tier I]

Which of the following pairs of 'elements – valency' is correct?
I. Boron – 2
II. Fluorine – 3
[CHSL Exam 2022 Tier I]

‘Au’ is the symbol for which of the following elements? [Combined Graduate Level Examination Tier I]

In which of the following groups of the periodic table is the metallic element 'silver' found? [Junior Engineer 2024 Electrical Paper I]

Which of the following elements has variable valency? [Combined Graduate Level Examination Tier I 2023]

Identify the last element from the fifth period. [Combined Graduate Level Examination Tier I 2023]

Identify the number of electrons found in the outermost shell of halogen. [SICPO Paper I 2024]

Which among the following elements behaves like alkali metals as well as halogens in its properties? [Constable GD Examination 2022]

What chemical element does ‘N’ stand for in the periodic table? [MTS Non technical and Havaldar Examination 2021]

An image of which of the following elements is shown by the map of Cyprus from which the element got its name? [MTS Non Tech Havaldar CBIC and CBN Examination 2023]

Identify the element which is not a metalloid. [Constable GD Examination 2022]

Chaoite, Buckminsterfullerene and Graphene are related to which element? [MTS Non Tech Havaldar CBIC and CBN Examination 2023]

Which of the following gas plays an important role in welding titanium, aluminium, stainless steel, and magnesium? [Combined Graduate Level Examination Tier I]

Which of the following inert gases is used to inflate party balloons?
[Constable GD 2021]

What is the approximate atomic mass (u) of hydrogen? [MTS Non technical and Havaldar Examination 2021]

Which of the following statements is FALSE? [Constable GD 2021]

Protium, deuterium and tritium are the naturally occurring isotopes of:

[SSC CGL 2019]

An isotope of which of the following is used in the treatment of cancer?

[SSC CHSL 2022]

How many neutrons are present in protium?

[RRB NTPC CBT]

The number of ______ is equal to the difference between the mass number of the atom and the atomic number.

[RRB NTPC CBT]

Which of the following options are all transition metals?

[RRB NTPC CBT]

Which radioisotope is used for the treatment of metastatic bone cancer?

[RRB NTPC CBT]

Neutrons are present in the nucleus of all atoms, except -

[RRB NTPC CBT]

There are three isotopes of hydrogen atoms, namely Protium, Deuterium and Tritium. The respective atomic number and mass number of the isotope Tritium is:

[RRB NTPC CBT]

Diamonds can be synthesized by subjecting pure carbon to:

[RRB NTPC CBT]

What is the characteristic of isotopes?

[SSC MTS 2022]

The sum of the total number of protons and neutrons present in the nucleus of an atom is known as -

[RRB NTPC CBT]

The correct order of electron affinity of halogens is:

[SSC CHSL 2023]

Ferrum is the Latin name for ______ .

[SSC CGL 2021]

All noble gas molecules are-

[RRB NTPC CBT]

Which of the following is NOT an alkaline earth metal?

[RRB NTPC CBT]

Name the element which has an electronic configuration of 2, 8, 7

[RRB NTPC CBT]

Valence electrons are present in the :

[RRB NTPC CBT]

Which of the following is the least reactive element?

[RRB NTPC CBT]