Q. No.Eka aluminium and Eka silicon are now known as:
| 1. | Ga and Ge | 2. | Al and Si |
| 3. | Fe and S | 4. | H+ and Si |
Subtopic: Â Modern Periodic Table & Periodicity |
 89%
From NCERT
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An example of metalloid elements in the periodic table is:
| 1. | Na and K | 2. | Cu and Al |
| 3. | As and Si | 4. | Ca and Mg |
Subtopic: Â Modern Periodic Table & Periodicity |
 88%
From NCERT
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All the non-metals in the long form of the periodic table are placed under:
1. s-Block
2. p-Block
3. f-Block
4. d-Block
Subtopic: Â Modern Periodic Table & Periodicity |
 88%
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The element named after Lawrence Berkeley Laboratory is:
1. Seaborgium
2. Lawrencium
3. Moscovium
4. Hafnium
Subtopic: Â Modern Periodic Table & Periodicity |
 89%
From NCERT
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Among the following elements whose atomic numbers are given below, which cannot be accommodated in the present set up of the long periodic table?
1. 107
2. 118
3. 126
4. 102
1. 107
2. 118
3. 126
4. 102
Subtopic: Â Modern Periodic Table & Periodicity |
 89%
From NCERT
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Among the following elements, identify the one that is not an actinoid :
1. Curium (Z = 96)
2. Californium (Z = 98)
3. Uranium (Z = 92)
4. Terbium (Z = 65)
1. Curium (Z = 96)
2. Californium (Z = 98)
3. Uranium (Z = 92)
4. Terbium (Z = 65)
Subtopic: Â Modern Periodic Table & Periodicity |
 86%
From NCERT
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The elements with atomic numbers 35, 53, and 85 are:
| 1. | Noble gases | 2. | Halogens |
| 3. | Heavy metals | 4. | Light metals |
Subtopic: Â Modern Periodic Table & Periodicity |
 83%
From NCERT
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Correct statement regarding transuranic elements is :
1. They have higher atomic number than uranium.
2. They are lighter than uranium.
3. They have lower atomic number than uranium.
4. They have same atomic number as uranium.
Subtopic: Â Modern Periodic Table & Periodicity |
 78%
From NCERT
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Subtopic: Â Modern Periodic Table & Periodicity |
 76%
From NCERT
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The period number in the long form of the periodic table is equal to :
| 1. | Magnetic quantum number of any element of the period. |
| 2. | Atomic number of any element of the period. |
| 3. | Maximum principal quantum number of any element of the period. |
| 4. | Maximum azimuthal quantum number of any element of the period. |
Subtopic: Â Modern Periodic Table & Periodicity |
 79%
From NCERT
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