Sum of protons and neutrons in an atom gives off _________ ?

Related Mcqs:

1. A helium nucleus comprising of two protons and two neutrons with a charge of 2e is _________ ?

   A. Beta particle B. Gamma particle C. Alpha particle D. Negative particle Submitted by: Rashid Mehmood...

2. Neutrons moving with an energy of 1.2 MeV are called_______________?

   A. Fast neutrons B. Slow neutrons C. Moderate neutrons D. All are possible...

3. Element that have same number of neutrons are called__________?

   A. isotope B. isobar C. isotone D. None of these Submitted by: Ayyan Khan...

4. A metallic atom loses its valence electron to form a/an _________?

   A. an anion B. a cation C. an anion – cation D. none of these​ Submitted by: Aamir khan Hullio...

5. The oxidation number of central metal atom in [Ni(CO)4] is_________________?

   A. 0 B. 2 C. 4 D. 6...

6. In pig iron the concentration of C-atom is ___________________?

   A. 0.12 — 0.25% B. 2.5 — 4.5% C. 2.0 — 4.0% D. 0.25 — 2.5%...

7. In network of silica (SiO2) each silicon atom is surrounded by _____________ atoms of osygen?

   A. 4 B. 2 C. 1 D. 6...

8. When one hydrogen atom of alkane is removed then it is called________________?

   A. alkene B. alkyl C. aldehyde D. saturated hydrocarbon...

9. The hybridization of nitrogen atom in pyridine is_______?

   A. Sp B. Sp2 C. Sp3 D. It is not hybridized Submitted by: Muhammad Ali Kunbhar...

10. The Maximum mass of an atom is present in ___________?

    A. Shell B. Nucleus C. Energy levels D. Orbit Submitted by: Aamir khan Hullio...