Advertisements
Advertisements
प्रश्न
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).
Oxide
Advertisements
उत्तर
| Name | Symbol | Ion | Valency |
| Oxide | \[\ce{O}\] | \[\ce{O^{2-}}\] | −2 |
APPEARS IN
संबंधित प्रश्न
An atom of an element is denoted by a “symbol”. Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Hydrogen by ‘H’
Match the formulas of the following of acids with their correct names:
Acids – (a) HCI (b) HNO3 (c) H2SO4 (d) H2CO3
Names – (1) Carbonic acid (2) Sulphuric acid (3) Hydrochloric acid (4) Nitric acid
Give the symbol of the following element:
Platinum
State the type of element for the following:
Antimony
Give the symbol of the following element:
Nitrate
Write the radical of the following valency:
Sodium
Give the formula of the following gas:
Carbon monoxide
Complete the statement given below by filling in the blanks with the correct words.
From the elements – He, Br, Pt and O; the element which forms a polyatomic molecule is ________ and which is liquid at room temperature is ________.
What is meant by the term ‘symbol’?
Which letter is never used in any element symbol?
