Periodic Table

Question 1

What is the ore of Uranium called

Answer 1

Pitch Blende

Question 2

What elements are present in pitch blende

Answer 2

Neptunium, Plutonium, actinium, protactinium

Question 3

What is atomic Number equal to

Answer 3

Nuclear Charge

Question 4

Period Number corresponds to the

Answer 4

Highest principle Quantum Number

Question 5

Rutherfordium was also known as

Answer 5

Kurchatovium

Question 6

101

Answer 6

Mendelevium (Md)

Question 7

102

Answer 7

Nobelium (No)

Question 8

103

Answer 8

Lawrencium (Lr)

Question 9

104

Answer 9

Rutherfordium (Rf)

Question 10

105

Answer 10

Dubnium (Db)

Question 11

106

Answer 11

Seaborgium(Sg)

Question 12

107

Answer 12

Bohrium(Bh)

Question 13

108

Answer 13

Hassium(Hs)

Question 14

109

Answer 14

Meitnerium(Mt)

Question 15

110

Answer 15

Darmstadtium(Ds)

Question 16

111

Answer 16

Rontgenium(Rg)

Question 17

112

Answer 17

Copernicium(Cn)

Question 18

113

Answer 18

Nihonium(Nh)

Question 19

114

Answer 19

Flerovium(Fl)

Question 20

115

Answer 20

Moscovium(Mc)

Question 21

116

Answer 21

Livermorium(Lv)

Question 22

117

Answer 22

Tennessine(Ts)

Question 23

118

Answer 23

Oganesson(Og)

Question 24

Helium belongs to S block, but is still placed with P-block elements, why?

Answer 24

It has completely filled valence shell (1s2) and as a result, exhibits properties characteristic of other noble gases.

Question 25

Ionization enthalapy of alkali and alkaline earth metals

Answer 25

highly reactive, low ionization enthalapy

Question 26

why lithium and beryllium are not predominantly ionic

Answer 26

Lithium and beryllium are not predominantly ionic due to their atomic structure, low ionization energy, low electronegativity, and tendency to form covalent bonds.

Question 27

What are s-block and p-block elements known as

Answer 27

Representative or main block elements

Question 28

Halogens (17) and Chalcogens (16) follow properties of

Answer 28

1. Highly negative electron gain enthalapies 2. Readily add one or two electrons respectively to attain noble gas configuration 3. Non-metallic character increases as we move from i. left to right of a period metallic character increases when we move from i. top to bottom of a group.

Question 29

Properties of D block elements

Answer 29

1. Metals in nature 2. Form coloured ions 3. exhibit variable valence (oxidation states) 4. Paramagnetic in nature 5. Used as Catalysts

Question 30

Elements after Uranium are called

Answer 30

Transuranium elements

Question 30

Transition elements are also called as

Answer 30

Bridged elements

Question 31

Some semi metals are

Answer 31

Silicon, Germanium, arsenic, antimony, tellurium