Advertisements
Advertisements
Question
State the valency of the following metallic element and write symbol with the valency
Aluminium
Solution
Metals have positive valency 1, 2 or 3,
| Element | Symbol | Valency |
| Aluminium | \[\ce{Al}\] | \[\ce{Al^3+}\] |
APPEARS IN
RELATED QUESTIONS
What do you understand by :
Noble gases
Match the non-metallic elements – with their correct symbols. Non-metallic elements are:
| Non-Metallic elements | Symbol |
| (a) Carbon | (1) O |
| (b) Chlorine | (2) I |
| (c) Oxygen | (3) Si |
| (d) Phosphorus | (4) C |
| (e) Hydrogen | (5) Cl |
| (f) Nitrogen | (6) P |
| (g) Iodine | (7) F |
| (h) Bromine | (8) H |
| (i) Fluorine | (9) S |
| (j) Silicon | (10) Br |
| (k) Sulphur | (11) N |
State the type of element for the following:
Zinc
Write the radical of the following valency:
Aluminium
Write the chemical formula of the following:
calcium sulphide
Select the correct answer to the statement given below:
An element present in the earth’s crust, atmosphere and the human body.
State the valency of the following metallic element and write symbol with the valency
Sodium
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Copper
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).
Bisulphate
Describe the different ways in which we can write the symbols of elements. Give appropriate examples.
