Fill in the 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 Newland’s classification of elements, the properties of sulphar are similar to those of oxygen because sulphur is the ______ element starting from oxygen.

Question

Fill in the 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 Newland&#x2019;s classification of elements, the properties of sulphar are similar to those of oxygen because sulphur is the ______ element starting from oxygen.

Philoid · Accepted Answer

(a) The new or modern periodic table is made on the basis of atomic number.

(b) They are called periods and the vertical rows in a periodic table are called as groups.

(c) Group 1 elements are alkali, these are the bases which can be mixed with water.

(d) They are known as Halogens. Halogens are the group of non-metallic elements.

(e) They are known as Noble gases. Noble gases are unreactive gases.

(f) This is because sulphur is the eighth element starting from oxygen. According to Newland’s statement the property of the element is similar to the element which has 8th position from the starting element.