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प्रश्न
State the type of element for the following:
Copper
विकल्प
Metal
Non-metal
Metalloid
Noble gas
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उत्तर
Metal
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संबंधित प्रश्न
Name the element used as a standard for atomic mass scale.
Give two symbols which have been derived from the "English names" of the elements.
Give the symbol and the number of atoms of the following elements present in zinc chloride.
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)
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:
Calcium
State the type of element for the following:
Boron
Write the radical of the following valency:
Sodium
Give the formula of the following gas:
Hydrogen chloride
Name three metals whose symbols are derived: from their Latin names.
