Question

Fill in the following blanks with suitable words :
(a) The basis for modern periodic table is………
(b) The horizontal rows in a periodic table are called……….
(c) Group 1 elements are called………
(d) Group 17 elements are known as………
(e) Group 18 elements are called…….
(f) According to Newlands’ classification of elements, the properties of sulphur are similar to those of oxygen
because sulphur is the………. element starting from oxygen.

Lakhmir Singh Chemistry Class 10

Answer 1

Hey !

Here is your answer !

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★ ATOMIC NUMBER

★ PERIODS

★ALKALI METALS

★HALOGENS

★NOBLE GASES / INERT GASES

★ EIGHTHS

Answer 2

Answer:

according to Newlands laws of