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WorksheetsXI Chemistry Unit 3 Part 8B
Total questions: 10
Worksheet time: 5mins
The _____ of an atom is the combining capacity relative to hydrogen atom.
valence shell
valence
Number of electrons
Atomic number
Valence is usually equal to the total number of electrons in the _____.
Valence shell
Penultimate shell
Pre penultimate shell
Anti penultimate shell
. It is more convenient to use _____ in the place of valence.
atomic weight
atomic number
oxidation state
ionic radius
Some elements have variable valence.
True
False
Which one of the following is true about metallic character when we move from left to right in a period and top to bottom in a group ?
Decreases in a period and increases along the group
Increases in a period and decreases in a group
Increases both in the period and the group
Decreases both in the period and in the group
The _____ have completely filled electronic configuration neither accept nor lose their electron readily.
Halogens
Chalcogens
Alkali metals
Noble gases
Which of the following pairs of elements exhibit diagonal relationship ?
Be and Mg
Li and Be
Be and B
Be and Al
Which of the following is second most electronegative element ?
Chlorine
Fluorine
Oxygen
Sulphur
The elements of the _____ period have only four orbitals (2s, 2p) in the valence shell.
1st
2nd
3rd
4th
_____ and _____ form more covalent compounds unlike the alkali and alkaline earth metals which predominantly form ionic compounds.
Li and Be
K and Ca
Na and Mg
Rb and Ba
