Atomic Structure One Liner Questions & Answers


Questions Answers
1 Who is regarded as the Father of Modern Chemistry? Lavoisier
2 The positively charged part at the centre of an atom is called as – Nucleus
3 Constituents of the atomic nucleus are – Proton and neutron
4 A single type of atom is found in – Native elements
5 The atomic nucleus was discovered by – Rutherford
6 In an atom, neutron was discovered by – Chadwick
7 Higgs Boson is also known as – God Particles
8 Much discussed ‘God Particle’ is – Higgs boson
9 ‘God particle is – Higgs Boson
10 Which particle is free of charge? Neutron
11 Which particle has zero charge? Neutrino
12 The alpha particle carries two positive charges. Its mass is very nearly equal to that of – Nucleus of an atom of helium
13 The Nucleus of Helium has – Two protons and two neutrons
14 Which elements does not contain neutrons? Hydrogen
15 In an atom, the order of filling up of the orbitals is governed by – Aufbau’s principle
16 Regarding the atom of a chemical element, the magnetic quantum number refers to – Orientation
17 The number of electrons and neutrons in an element is 18 and 20 respectively. Its mass number is – 38
18 What is the mass number of an element, the atom of which contains two protons, two neutrons and two electrons? 4
19 The number of neutrons in the nucleus of plutonium nuclide (94Pu242) is – 148
20 The atoms, in which the number of protons is the same but the number of neutrons is different, is known as – Isotopes
21 Isotopes are those atoms of the same element which have – Atomic mass is different but atomic number is same
22 Isotopes is that nucleus of atomic nuclei in which – Number of protons is same but number of neutrons is different
23 The neutronic group, in the following, is – 6 C14, 7 N15, 8 O16
24 Radioactivity is measured by – Geiger Counter
25 Radioactivity was discovered by – Becquerel