Basic Concept MCQs

A. 0.2m

B. 0.2mm

C. 0.2nm

D. 0.2pm

A. H+ HH-

B. Li+ Na+ K+

C. C1- Br- I

D. F- Ne Na+

A. Atomic number

B. Relative abundance

C. Electronic configuration

D. All of the above

A. High energy electron beam

B.   – particle

C. X-rays

D. All of the above

A. Relative abundance

B. The average mass of the element

C. Number of isotopes

D. Relative isotopic mass

A. CH2 C12

B. CH3C1

C. CC14

D. CHC13

A. Same number of neutrons

B. Same mass number

C. Same physical properties

D. Same chemical properties

A. 1-mole molecules of water

B. 1-gram molecule of water

C. 3-gram atoms

D. all

A. Uni-negative

B. Uni-positive

C. Di-negative

D. Di-positive

A. Isotopes with the odd atomic number are abundant

B. Isotopes with the odd atomic number and even mass number are abundant

C. Isotopes with an even atomic number and even mass number are abundant

D. Isotopes with an even atomic number and odd mass no are abundant