Structure of Atom Test

Result

Structure of Atom Test - 65

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

If uranium (mass no. 238 and atomic no. 92) emits $$\alpha$$ -particle, the product has mass number and atomic number:

A
234, 90

B
236, 92

C
238, 90

D
236, 90

Solution

The required reaction is:

$$_{92}U^{238} \rightarrow \ _{90}Th^{234} + \ _2He^4$$

Atomic number: 90
Mass number: 234
Question 2
1 / -0

The amount of energy which is released due to addition of extra electron to the outermost orbit of gaseous atom is called

A
Electron capacity

B
Electron affinity

C
ionisation potential

D
Electronegativity

Solution

Correct option is B
Question 3
1 / -0

Aufbau principle is not satisfied by

A
$$Cr$$ and $$Cl$$

B
$$Cu$$ and $$Ag$$

C
$$Cr$$ and $$Mg$$

D
$$Cu$$ and $$Na$$

Solution
Question 4
1 / -0

Aufbau principle is obeyed in which of the following electronic configurations

A
$$1s^22s^22p^6$$

B
$$1s^23p^33s^2$$

C
$$1s^23s^23p^6$$

D
$$1s^22s^23s^2$$

Solution
Question 5
1 / -0

Correct energy value order of

A
$$ns\ np\ nd\ (n-1)f$$

B
$$ns\ np\ (n-1)d\ (n-2)f$$

C
$$ns\ np\ (n-1)d\ (n-1)f$$

D
$$ns\ (n-1)d\ np\ (n-1)f$$

Solution

Energy order is followed by (n+l) rule:
l = 0 for s-orbital
l = 1 for p-orbital
l = 2 for d-orbital a
and l = 3 for f-orbital.
so correct order is $$ns\ (n-1)d\ np\ (n-1)f$$
Question 6
1 / -0

Which of the following explains the sequence of filling the electrons in different shells

A
Hund's rule

B
Octet rule

C
Aufbau principle

D
All of these

Solution
Question 7
1 / -0

Which of the following property displays progressive increase down a group in the Bohr's periodic table

A
Electronegativity

B
Electron affinity

C
Ionization potential

D
Size of the atom

Solution

Down the group size of atom increases due to increase in number of shells.
Question 8
1 / -0

The number of elements in the $$5^{th}$$ period of the periodic table are

A
$$8$$

B
$$10$$

C
$$18$$

D
$$32$$

Solution

$$5^{th}$$ period has 18 elements.
Question 9
1 / -0

Out of all the known elements the number of transitional elements is

A
80

B
61

C
43

D
38

Solution

Out of all the known elements the number of transitional elements is 61.
Hence, Option "B" is the correct answer.
Question 10
1 / -0

In transition elements, the orbitals partially filled by electrons are

A
s- orbitals

B
p- orbitals

C
d- orbitals

D
f- orbitals

Solution

In transition elements, the orbitals partially filled by electrons are d-orbitals.
Hence, Option "C" is the correct answer.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Structure of Atom Test - 65

Result

Structure of Atom Test - 65

Score

-

Rank

-

SHARING IS CARING

Question 1

234, 90

236, 92

238, 90

236, 90

Solution

Question 2

Electron capacity

Electron affinity

ionisation potential

Electronegativity

Solution

Question 3

$$Cr$$ and $$Cl$$

$$Cu$$ and $$Ag$$

$$Cr$$ and $$Mg$$

$$Cu$$ and $$Na$$

Solution

Question 4

$$1s^22s^22p^6$$

$$1s^23p^33s^2$$

$$1s^23s^23p^6$$

$$1s^22s^23s^2$$

Solution

Question 5

$$ns\ np\ nd\ (n-1)f$$

$$ns\ np\ (n-1)d\ (n-2)f$$

$$ns\ np\ (n-1)d\ (n-1)f$$

$$ns\ (n-1)d\ np\ (n-1)f$$

Solution

Question 6

Hund's rule

Octet rule

Aufbau principle

All of these

Solution

Question 7

Electronegativity

Electron affinity

Ionization potential

Size of the atom

Solution

Question 8

$$8$$

$$10$$

$$18$$

$$32$$

Solution

Question 9

80

61

43

38

Solution

Question 10

s- orbitals

p- orbitals

d- orbitals

f- orbitals

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.