Home Chemistry Atomic Structure Test Online Mcqs Preparation Chemistry Atomic Structure Test Online Mcqs Preparation Chemistry Atomic Structure Test Online Mcqs Preparation With Answers Start Below 123456789101112131415Show paginator Hide paginator 7% Question 1 of 15 1. How many times the mass of neutrons is greater than mass of electron.A. 1840B. 1480C. 2000D. 1200Question 1 of 15 Loading... Question 2 of 15 2. In which of the following, all have same number of electrons:A. F-, Ne and Na+B. Li+, Na+ and K+C. Cl-, Br- and I-D. H-, H and H+Question 2 of 15 Loading... Question 3 of 15 3. The ionic specie having more electrons than neutrons isA. O2-B. F-1C. Mg+2D. Na+Question 3 of 15 Loading... Question 4 of 15 4. The number of d-electrons in Fe+2 (Z=26) is not equal to:A. p electrons in Ne (Z = 10)B. d electrons in Fe (Z = 26)C. s electrons in Mg (Z = 12)D. p electrons in Ar (Z = 17)Question 4 of 15 Loading... Question 5 of 15 5. The ion that is iso-electronic with CI atom isA. CN-B. O+2C. O-2D. N+2Question 5 of 15 Loading... Question 6 of 15 6. 2nd ionization energy of Mg is higher than the first because:A. Metallic character of Mg+1 is less than that of MgB. Both a and bC. Size of Mg+1 is greater than Mg+2D. Nuclear pull for Mg+1electron is more than that for the Mg atomQuestion 6 of 15 Loading... Question 7 of 15 7. The value of e/m for the electron is:A. 1.7588 x 1011 kg C-1B. 1.7588 x 10-11 Ckg-1C. 1.7588 x 1011 Ckg-1D. 1.7588 x 1011 kgC-1Question 7 of 15 Loading... Question 8 of 15 8. Which of the following has highest ionization energy value?A. LiB. HeC. BeD. HQuestion 8 of 15 Loading... Question 9 of 15 9. The mass of proton isA. 9.1 x 10-18 gB. 9.1 x 10-31 kgC. 1.672 x 10-27 kgD. 9.1 x 10-10 gQuestion 9 of 15 Loading... Question 10 of 15 10. Identify the correct order of increasing energy:A. 2s > 3s > 1sB. 1s > 2s > 3sC. None of the aboveD. 1s < 2s < 3sQuestion 10 of 15 Loading... Question 11 of 15 11. An orbital which is spherically symmetrical is:A. s-orbitalB. d-orbitalC. f-orbitalD. p-orbitalQuestion 11 of 15 Loading... Question 12 of 15 12. Isotopes differ in:A. Properties with respect to their mass numberB. Isotopes don’t differ as they have same number of electrons and protonsC. Properties with respect to their proton numberD. All of the aboveQuestion 12 of 15 Loading... Question 13 of 15 13. Which of the following particles would on losing an electron has its outermost p-orbital as half filledA. P-1 ionB. S+1 ionC. O+ ionD. Nitrogen atomQuestion 13 of 15 Loading... Question 14 of 15 14. The shapes of s orbitals is circular and their size:A. Decrease with the increase in principal quantum numberB. Increase with the increase in principal quantum numberC. None of the aboveD. Remains the same with the change in principal quantum numberQuestion 14 of 15 Loading... Question 15 of 15 15. The electron configuration of K(19) is:A. 1s2 2s2 2p6 3s2 2p5 4s2B. 1s2 2s2 2p6 3s2 3p6 4s1C. None of the aboveD. 1s3 2s3 2p5 3s3 3p5Question 15 of 15 Loading... Loading... Related Study Posts:MDCAT Test Chemistry Test Online PreparationAtomic Energy Jobs Test NTS Result 2024 Check OnlineASF Written Test Preparation Online McqsOnline ECAT Test Preparation McqsFPSC SST Test Preparation Mcqs OnlinePPSC Lecturer Test Preparation Online McqsLecturer Test KPPSC Preparation Mcqs OnlineTESCO Jobs Online NTS Test Preparation McqsFIA ASI Sub Inspectors Job 2024 OTS Test Preparation…SPSC SST Test Preparation Mcqs Online with Syllabus