Atomic Structure Test

Result

Atomic Structure Test - 6

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

The number of electrons carrying a total charge of 1 C is

A
6.023 × 10²³

B
6.25 × 10¹⁸

C
6.24 × 10²⁰

D
6.023 × 10²²

Solution

N = 1 C/e = 1 C/(1.6 × 10^-19 C) = 6.25 × 10¹⁸
Question 2
1 / -0

The number of neutrons in dipositive zinc ion (Z = 30) with mass number 70 is

A
34

B
36

C
38

D
40

Solution

Atomic weight = 70
Atomic number = 30
Number of neutrons = 70 - 30 = 40
Question 3
1 / -0

Which of the following options is not true about anode rays?

A
Anode rays consist of positively charged particles.

B
Anode rays are also called canal rays.

C
Anode rays travel in the direction of cathode rays.

D
None of these

Solution

In 1836, E. Goldstein discovered the presence of new rays in the glass discharge tube moving from anode to cathode, i.e. these rays travelled in opposite direction to the cathode rays (which were moving from cathode to anode). These rays were called 'canal rays' because they passed through the holes or canals in the cathode. Further, on application of electric field, these rays were deflected towards the negative field of the electric field indicating that they are positively charged.
Question 4
1 / -0

The approximate radii of the nuclei of atoms lie in the range of

A
10^-12 m to 10^-13 m

B
10^-13 m to 10^-14 m

C
10^-14 m to 10^-15 m

D
10^-15 m to 10^-16 m

Solution

The radii of the nuclei of atoms lie in the range of 10^-14 m to 10^-15 m.
Question 5
1 / -0

Rutherford's experiment on scattering of α-particles showed for the first time that the atom has

A
electrons

B
protons

C
nucleus

D
neutrons

Solution

Rutherford's experiment on scattering of α-particles led to the discovery of nucleus. As per the experiment, the atom consists of centrally located positively charged nucleus. The whole mass of the atom is located in the nucleus. Around the nucleus, there is an empty space in which the negatively charged electrons revolve in different orbits. The model given by Rutherford is also known as a planetary mode of an atom.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Atomic Structure Test - 6

Result

Atomic Structure Test - 6

Score

-

Rank

-

SHARING IS CARING

Question 1

6.023 × 1023

6.25 × 1018

6.24 × 1020

6.023 × 1022

Solution

Question 2

34

36

38

40

Solution

Question 3

Anode rays consist of positively charged particles.

Anode rays are also called canal rays.

Anode rays travel in the direction of cathode rays.

None of these

Solution

Question 4

10-12 m to 10-13 m

10-13 m to 10-14 m

10-14 m to 10-15 m

10-15 m to 10-16 m

Solution

Question 5

electrons

protons

nucleus

neutrons

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.

6.023 × 10²³

6.25 × 10¹⁸

6.24 × 10²⁰

6.023 × 10²²

10^-12 m to 10^-13 m

10^-13 m to 10^-14 m

10^-14 m to 10^-15 m

10^-15 m to 10^-16 m