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Electron Affinity is maximum in ______.
Concept: Periodic Properties
Match the Column A with Column B.
| Column A | Column B | ||
| (a) | Water | 1. | Lithium |
| (b) | Alkali metal | 2. | Iodine |
| (c) | Halogen | 3. | Covalent compound |
| (d) | Calcium oxide | 4. | Acetic acid |
| (e) | Weak acid | 5. | Ionic compound |
| 6. | Sulphuric acid | ||
Concept: Study of Specific Groups in Periodic Table > Group I (Alkali Metals)
State the term for the following:
The amount of substance which contains the same number of units as the number of atoms in carbon-12.
Concept: Atomic Number (Z), Mass Number (A), and Number of Neutrons (n)
State the term for the following:
The tendency of an atom to pull a shared pair of electrons towards itself in a compound.
Concept: Periodic Properties > Electronegativity
Identify the following:
An element in Period 1 which can be placed in both Group 1 and Group 17 of the Periodic Table.
Concept: History of Periodic Table: Early Attempts at the Classification of Elements
Arrange the following as per the instruction given in the bracket:
Carbon, Fluorine, Beryllium (decreasing order of atomic size).
Concept: Periodic Properties > Atomic Radius Or Atomic Size
Arrange the following as per the instruction given in the bracket:
Potassium, Lithium, Sodium (increasing order of ionization potential).
Concept: Periodic Properties > Ionisation Potential (Ionisation Energy)
Identify the following:
The most electronegative element of Period 3.
Concept: Periodic Properties > Electronegativity
Which of the following would weigh the least?
(Atomic masses C = 12, 0 = 16, Na = 23)
Concept: Periodic Properties
Element ‘P' has electronic configuration 2,8,8,1. The number of chlorine atoms present in the chloride of ‘P’ is ______.
Concept: Atomic Number (Z), Mass Number (A), and Number of Neutrons (n)
1H2 is an isotope of hydrogen. In the modern Periodic Table it will ______.
Concept: The Modern Periodic Table
Assertion (A): Alkali metals do not form dipositive ions.
Reason (R): After loss of one electron alkali metals achieve a stable electronic configuration of noble gases.
Concept: Study of Specific Groups in Periodic Table > Group I (Alkali Metals)
If an element has one electron in the outermost shell, then it is likely to have the ______ atomic size amongst all the elements in the same period.
Concept: Periodic Properties > Shells (Orbits)
Identify the following:
A reaction in which the hydrogen of an alkane is replaced by a halogen.
Concept: Study of Specific Groups in Periodic Table > Group VIIA Or Group 17 (The Halogens)
Identify the following:
The energy required to remove an electron from a neutral gaseous atom.
Concept: Periodic Properties > Ionisation Potential (Ionisation Energy)
The electron affinity of an element X is greater than that of element Y.
How is the oxidising power of X likely to compare with that of Y?
Concept: Periodic Properties > Electron Affinity
The electron affinity of an element X is greater than that of element Y.
How is the electronegativity of X likely to compare with that of Y?
Concept: Periodic Properties > Electron Affinity
The electron affinity of an element X is greater than that of element Y.
State whether X is likely to be placed to the left or to the right of Y in the periodic table.
Concept: Periodic Properties > Electron Affinity
Element 'X' forms an oxide with the formula X2O3 which is a solid with high melting point. ‘X’ would most likely be placed in the group of the Periodic Table as:
Concept: History of Periodic Table: Early Attempts at the Classification of Elements
Justify. Element 'X' forms an oxide with the formula X2O3 which is a solid with a high melting point. ‘X’ would most likely be placed in the group of the Periodic Table as Al.
Concept: History of Periodic Table: Early Attempts at the Classification of Elements
