Fill in the following blanks with suitable words :
(a) The basis for the 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 sulphur are similar to those of oxygen because sulphur is the …………… element starting from oxygen.
Fill in the following blanks with suitable words :
(a) The basis for the 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 sulphur are similar to those of oxygen because sulphur is the …………… element starting from oxygen.
(a) The basis for the modern periodic table is the atomic number.
(b) The horizontal rows in a periodic table are called periods.
(c) Group 1 elements are called alkali metals.
(d) Group 17 elements are known as halogens.
(e) Group 18 elements are called noble gases.
(f) According to Newland's classification of elements, the properties of sulphur are similar to those of oxygen because sulphur is the eighth element, starting from oxygen.
(a) The basis for the modern periodic table is the atomic number.
(b) The horizontal rows in a periodic table are called periods.
(c) Group 1 elements are called alkali metals.
(d) Group 17 elements are known as halogens.
(e) Group 18 elements are called noble gases.
(f) According to Newland's classification of elements, the properties of sulphur are similar to those of oxygen because sulphur is the eighth element, starting from oxygen.
