Advertisements
Advertisements
Question
Define: Elements-
Solution
Elements : An element is the basic form of matter that cannot be broken down into simpler substances by chemical reactions.
APPEARS IN
RELATED QUESTIONS
The symbol of a metal element which is used in making thermometers is :
Match the symbols of – radicals – with their correct combining power or capacity, (valency).
(a) OH
(b) So4
(c) No3
(d) Co3
Combining power or capacity – A : 3; B : 2; C : 1. (negative valencies)
Give the symbol of the following element:
Fluorine
Give the symbol of the following element:
Sodium
State the type of element for the following:
Zinc
Write the radical of the following valency:
Iodine
Give the formula of the following acid:
Sulphuric
State the valency of the following metallic element and write symbol with the valency
Aluminium
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Tin
write symbol with the variable valency
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Nitrate
