The atoms of same element having same atomic number but different mass number are called____________________?

A. Isobars
B. Isomers
C. Isotopes
D. Isotropes

Related Mcqs:

Halides in which halogen atoms act as a bridge between two atoms of the other element are called___________________?
A. Covalent halides
B. Electronegative halides
C. Polymeric halides
D. Polymeric hydrides
The atomic number of an element having maximum number of unpaired electrons in p-subshell is_______________?
A. 7
B. 10
C. 12
D. 16
When the atoms of third layer are arranged in such a way that they directly lie above the atoms of first layer then this arrangement is called_________________?
A. ABAB (hexagonal)
B. ABCABC (Cubic)
C. Orthor hombic
D. Rhombohedral
Compound containing two halogen atoms on two adjacent carbon atoms are called as ___________?
A. Glycols
B. Vicinal dihalides
C. Geminal dihalides
D. Diols
Submitted by: Aamir khan Hullio
The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in__________?
A. 1.8 gram of H₂O
B. 12 moles of KMnO₄
C. 0.6N H₂SO₄
D. 4.6 gram of C₂H₅OH
Submitted by: Muhammad Ali Kunbhar
The atomic radii decreases by increasing atomic number in________________?
A. Alkali metal
B. Alkaline earth metal
C. Elements from Li to Ne
D. Halogens
The number of isotopes of elements with even mass number and even atomic number are ________________?
A. 280
B. 300
C. 154
D. 54
Atomic mass of an atom is present in the __________?
A. Shell
B. Orbit
C. Nucleus
D. Orbital
Submitted by: Aamir khan Hullio
Atomic orbits having same energy are called________________?
A. Degenerate orbitals
B. Bonding molecular orbitals
C. Anti bonding molecular orbitals
D. Half filled orbitals
Many properties of an element and its compounds can be predicted from the position of the element in the periodic table. What property could not be predicted in this way ?
A. The nature of its oxides
B. The charge on its ions
C. The formula of its oxide
D. Its number of isotopes