Chemistry-Structure of Atom (NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension): Questions 5 - 10 of 10

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Question number: 5

» Chemistry » Structure of Atom

MCQ▾

Question

a-particles are

Choices

Choice (4) Response

a.

single positive helium nucleus

b.

Neutral helium atom

c.

Double positive helium nucleus

d.

None of the above

Question number: 6

» Chemistry » Structure of Atom

MCQ▾

Question

The only element having no neutron is

Choices

Choice (4) Response

a.

Protium

b.

Deuterium

c.

Tritium

d.

None of the above

Question number: 7

» Chemistry » Structure of Atom

MCQ▾

Question

Isotopes differ in the number of

Choices

Choice (4) Response

a.

Electrons

b.

Neutrons

c.

protons

d.

Nucleons

Question number: 8

» Chemistry » Structure of Atom

MCQ▾

Question

A divalent cation has 10 electrons and 12 neutrons. The atomic number and mass number of the elements are

Choices

Choice (4) Response

a.

12, 24

b.

10, 22

c.

11, 25

d.

8, 12

Question number: 9

» Chemistry » Structure of Atom

MCQ▾

Question

The size of colloidal particles in a colloid range

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 10

» Chemistry » Structure of Atom

Appeared in Year: 2013

MCQ▾

Question

An element X has 7 electrons in its L shell. What is true about the element X?

I. It belongs to period 9 of modern periodic table.

II. Its atom contains 9 protons.

III. It has a Valency of 7.

IV. Its atoms can accept an electron to acquire noble gas configuration.

Choices

Choice (4) Response

a.

II and III

b.

III and IV

c.

II and IV

d.

I and II

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