Advertisements
Advertisements
प्रश्न
Name and state the following with reference to the elements of the first three periods of the periodic table.
A covalent compound formed by an element in period 2 and a halogen.
उत्तर
Carbon tetrachloride (CCl4)
APPEARS IN
संबंधित प्रश्न
Is it possible to have an element having atomic number 1.5 placed between hydrogen and helium?
The atomic numbers of four elements P, Q, R and S are 6, 8, 14 and 16 respectively. Out of these, the element known as metalloid is:
(a) P
(b) Q
(c) R
(d) S
Give the symbol and valency of the following element and radical.
Magnesium
State what is meant by the term chemical formula.
Give the chemical formula of sodium bicarbonate
Mendeleev's periodic table : atomic mass : : Modern periodic table : _______
Find the odd one out and give its explanation.
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group?
Which of the following elements does not lose an electron easily?
