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प्रश्न
Give the chemical formula of ammonium sulphate
उत्तर
It denotes in a compound, the number of atoms of element present.
∴ Formula = \[\ce{(NH4)2SO4}\]
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संबंधित प्रश्न
Name two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice?
Which of the following statement is correct in regard to the classification of elements?
(a) Elements in modern periodic table are arranged on the basis of increasing atomic masses.
(b) Elements in Mendeleev's periodic table are arranged on the basis of increasing atomic numbers.
(c) In modern periodic table, the element nickel of lower atomic mass is kept before the element cobalt of higher atomic mass.
(d) In modern periodic table, the isotopes of chlorine having different atomic masses are kept in the same group.
Consider the following elements:
Na, Ca, Al, K, Mg, Li
Which of these elements belong to the same period of the periodic table?
Name two elements in each case:
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Give the symbol and valency of the following element and radical.
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Give the chemical formula of carbonic acid
Write scientific reason.
Lithium and sodium are included in the same group in periodic table.
In the modern periodic table, the positions of 1 to 20 elements are shown here. Identify the elements A and B. Write their atomic number.
Which of the following elements would lose an electron easily?
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