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(b) Dobereiner
(c) It has 18 vertical columns known as Groups.
(b) decreasing atomic number.
(c) K
(c) 5 - 8% acetic acid in water
(c) 5 – 8% acetic acid in water
The concept of triads in the elements was given by
(b) Dobereiner
(b) Dobereiner
See lessWhich of the following statements about the Modern Periodic Table is correct ?
(c) It has 18 vertical columns known as Groups.
(c) It has 18 vertical columns known as Groups.
See lessAccording to Mendeleev’s periodic law, the element were arranged in the periodic table in the order of
(b) decreasing atomic number.
(b) decreasing atomic number.
See lessWhich of the following element would loss an electron easily ?
(c) K
(c) K
See lessVinegar is a solution of
(c) 5 - 8% acetic acid in water
(c) 5 – 8% acetic acid in water
See less