Chemistry Exam  >  Chemistry Tests  >  Test: Atomic Models - Chemistry MCQ

Test: Atomic Models - Chemistry MCQ


Test Description

10 Questions MCQ Test - Test: Atomic Models

Test: Atomic Models for Chemistry 2024 is part of Chemistry preparation. The Test: Atomic Models questions and answers have been prepared according to the Chemistry exam syllabus.The Test: Atomic Models MCQs are made for Chemistry 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Atomic Models below.
Solutions of Test: Atomic Models questions in English are available as part of our course for Chemistry & Test: Atomic Models solutions in Hindi for Chemistry course. Download more important topics, notes, lectures and mock test series for Chemistry Exam by signing up for free. Attempt Test: Atomic Models | 10 questions in 30 minutes | Mock test for Chemistry preparation | Free important questions MCQ to study for Chemistry Exam | Download free PDF with solutions
Test: Atomic Models - Question 1

Which of the following models are not the same as Thomson Model of Atom?

Detailed Solution for Test: Atomic Models - Question 1

Thomson proposed a model of the atom, in which electrons are embedded to make it as the stable electrostatic arrangement and such that positive charge is equally distributed around a sphere. Mass is assumed to be equally distributed. So. it has different names like plum pudding, watermelon and raisin pudding model.

Test: Atomic Models - Question 2

Which of the following statements you think is wrong regarding α particle scattering effect?

Detailed Solution for Test: Atomic Models - Question 2

In this effect, a thin foil (thickness 100nm) made up of gold and coated with fluorescent ZnS screen which is circular around it. α particles mostly move through the gold foil having zero deflection, a small fraction is deflected and one in twenty thousand turns 180°.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Atomic Models - Question 3

Which of the following is not an isotope of hydrogen?

Detailed Solution for Test: Atomic Models - Question 3

Protium has only 1 proton, deuterium has one proton and 1 neutron whereas tritium has one proton and two neutrons. They are represented by 1H11D2 and 1T3. Helium has 2 protons and two neutrons, hence can’t consider as an isotope. Isotope means having the same number of protons but differ in the number of neutrons.

Test: Atomic Models - Question 4

Find out the number of neutrons, protons, and electrons of 17Cl37 respectively.

Detailed Solution for Test: Atomic Models - Question 4

An atom is written in the symbol ZXA. By comparing it to 17Cl37, we get a number of protons as 17 and mass number as 37. Mass number – proton number = neutron number. Number of neutrons is 37 – 17 = 20. No. of protons = No. of electrons = 17.

Test: Atomic Models - Question 5

Gravitational force = Gm1m2/r2.

Detailed Solution for Test: Atomic Models - Question 5

The formula of gravitational force is given by Gm1m2/r2. Here G is the gravitational constant, while m1 and m2 are the masses and r is the distance between m1 and m2. This theory is formulated when classic mechanics is applied to it.

Test: Atomic Models - Question 6

What is the absolute charge of a proton?

Detailed Solution for Test: Atomic Models - Question 6

According to the fundamental properties of particles, protons charge is +1.602176×10-19C. It is a subatomic particle. Rutherford discovered protons. Its elementary charge is 1. Proton’s charge is positive.

Test: Atomic Models - Question 7

Elements do emit radiation on their own and this property is known as _____

Detailed Solution for Test: Atomic Models - Question 7

Henri Becquerel discovered that elements emit radiation and termed this phenomenon as radioactivity. Later Curie on research found out about α-rays, β-rays and γ-rays. Later Rutherford concluded that α particles are helium nuclei.

Test: Atomic Models - Question 8

If the number of protons and neutrons of an element is 13 and 14 respectively, then what’s the atomic number(Z) and mass number(A)?

Detailed Solution for Test: Atomic Models - Question 8

For an element, Atomic number(Z) = number of protons in that atoms = numbers of electrons in that atom; Mass number = number of protons + number of neutrons. So Z = 13 and A = 13 + 14 = 27. Hence that element is Aluminium.

Test: Atomic Models - Question 9

Chemical properties of an atom are dependent on a number of electrons in that particular atom.

Detailed Solution for Test: Atomic Models - Question 9

Yes, chemical properties of an atom is dependent on a number of electrons in that particular atom, which in turn is decided by the number of protons present in that atom. The number of neutrons has only a small effect on this.

Test: Atomic Models - Question 10

Pick out the isobar of 18Ar40.

Detailed Solution for Test: Atomic Models - Question 10

Isobar is a species of an element having the same mass number but a different atomic number. As per the above question, only 19K40 satisfies the conditions of 18Ar40 to be its isotope.

Information about Test: Atomic Models Page
In this test you can find the Exam questions for Test: Atomic Models solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Atomic Models , EduRev gives you an ample number of Online tests for practice
Download as PDF