Which of the following have their outer most shell complete in atomic form ?
A. Noble gases B. Alkali metals C. Coinage metals D. Gun metals
Chemistry MCQs
nergy of atom in compound is___________________?
EA. Higher than individual B. Lesser than individual C. No change D. Impossible to predict
An atom loses or gains electrons to__________________?
A. Gain stability B. Form a bond C. Complete its outermost shell D. all are accurate justifications
In a group ionic radius ?
A. Increases B. Decreases C. No change D. Variable trend
Ionization energy in a period generally ___________________?
A. Increases B. Decreases C. No change D. Variable trend
Elements having high I.P values are____________________?
A. Metals B. Non metals C. Liquids D. Solids
In a period electronegativity from left to right_________________?
A. Increases B. Decreases C. Remain constant D. Variable trend
Ionic bond is produced after complete transfer of ________________ ?
A. Nucleus B. Neutrons C. Electrons D. Protons
Bond will beionic when E.N difference of bonded atom is ____________________?
A. Equal to 1.7 B. Greater than 1.7 C. Less than 1.7 D. No specificity exists
Which one of the following has polar covalent bond ?
A. HF B. CH4 C. H2 D. N2