Structure of the Atoms Test

Result

Structure of the Atoms Test - 9

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Which radioactive isotope is used for the treatment of cancer?

A
I–139

B
C–14

C
N–15

D
Co–60

Solution

Cobalt isotope (Co–60) is used for the treatment of cancer. It is radioactive in nature. It is used for producing rays to kill the cancerous cells.
Question 2
1 / -0

Which of the two statement is/are true?

Statement A: Nucleus of an atom is massive and electrically neutral in nature.
Statement B: Isotopes of an element are chemically similar.

A
Statement A

B
Statement B

C
Both A and B

D
None of these

Solution

Nucleus of an atom is massive but it is not electrically neutral in nature due to the presence of positively charged particles - protons.

Isotopes of an element are chemically similar due to the presence of same number of valence electrons.
Question 3
1 / -0

Which of the following is not a characteristic of isotopes?

A
Isotope are the different atoms of the same element.

B
Isotopes of some elements are of radioactive nature.

C
Isotopes differ in the number of neutrons.

D
Physical properties of isotopes are same.

Solution

Isotopes are different atoms of the same element with the same atomic number but different atomic number. They differ in the number of neutrons.They are chemically similar but their physical properties are different.
Question 4
1 / -0

The atom which does not contain any neutron in the nucleus is:

A
Helium

B
Deuterium

C
Protium

D
Tritium

Solution

Protium - an isotope of Hydrogen - does not contain any neutron in its nucleus. The nucleus of protium contains only one proton. Deutrium - another isotope of Hydrogen - contains 1 neutron in its nucleus. Tritium - another isotope of Hydrogen - contains 2 neutrons. Helium nucleus also contains 2 neutrons.

Question 5

1 / -0

Match the following with the correct response:

(1) Deuterium	(A) Radiocarbon Dating
(2) Carbon-14	(B) Treatment of cancer
(3) Isotope of uranium	(C) Nuclear Reactors
(4) Cobalt-60	(D) An isotope of Hydrogen

1-D, 2-A, 3-C, 4-B

1-A, 2-C, 3-B, 4-D

1-C, 2-B, 3-D, 4-A

1-B, 2-D, 3-A, 4-C

Solution

Deuterium is an isotope of Hydrogen. Carbon-14 is a radioactive isotope used in radiocarbon dating. Isotope of uranium is used as a fuel in nuclear reactors. Cobalt isotope (Co–60) is used for the treatment of cancer. It is radioactive in nature. It is used for producing rays to kill the cancerous cells.

Question 6
1 / -0

Isotopes of an element have:
(a) Same chemical properties
(b) Same atomic masses
(c) Different atomic numbers
(d) Atoms of the same element

A
(a) and (d) are correct

B
(b) and (c) are correct

C
(a), (b) and (c) are correct

D
All of these

Solution

Isotopes are atoms with the same number of protons but different number of neutrons. Since the atomic number is equal to the number of protons and the atomic mass is the sum of the number of protons and neutrons, it can also be said that isotopes are atoms of the same element with the same atomic number but different mass number. They have the same chemical properties.
Question 7
1 / -0

How many electrons are present in the species He²⁺ ion?

A
0

B
2

C
4

D
8

Solution

Helium (He) has two electrons in its atom. The cation (He²⁺) is formed through the loss of 2 electrons from the outer-most shell of the atom. Hence, the number of electrons in He²⁺will be 0

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Structure of the Atoms Test - 9

Result

Structure of the Atoms Test - 9

Score

-

Rank

-

SHARING IS CARING

Question 1

I–139

C–14

N–15

Co–60

Solution

Question 2

Statement A

Statement B

Both A and B

None of these

Solution

Question 3

Isotope are the different atoms of the same element.

Isotopes of some elements are of radioactive nature.

Isotopes differ in the number of neutrons.

Physical properties of isotopes are same.

Solution

Question 4

Helium

Deuterium

Protium

Tritium

Solution

Question 5

1-D, 2-A, 3-C, 4-B

1-A, 2-C, 3-B, 4-D

1-C, 2-B, 3-D, 4-A

1-B, 2-D, 3-A, 4-C

Solution

Question 6

(a) and (d) are correct

(b) and (c) are correct

(a), (b) and (c) are correct

All of these

Solution

Question 7

0

2

4

8

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.