Question

which element is found in. period 2,group vii. period 4,group viii. Period5, group vi. Period 1,group viii​

Answer 1

Answer:

A period is a horizontal row of the periodic table. There are seven periods in the periodic table, with each one beginning at the far left. A new period begins when a new principal energy level begins filling with electrons. Period 1has only two elements (hydrogen andhelium), while periods 2 and 3 have 8 elements.

Answer 2

Answer:

a) Fluorine

b) Gallium

C) tellurium

d) Helium

Explanation:

a) Fluorine (F) elements is found in Period 2 and group VII.

b) Gallium (Ga) element is found in period 4 and group III.

c) Tellurium (Te) elements is found in Period 5 and group VI.

d) Helium (He) elements is found in Period 1 and group VIII.

                                             OR

a) When we go in period 2 from lift to right and goes from top to bottom in group VII so we found fluorine (F) element.

b) When we go in period 4 from lift to right and goes from top to bottom in group III so we found Gallium (Ga) element.

c) When we go in period 5 from lift to right and goes from top to bottom in group VI   so we found tellurium (Te) element.

d) When we go in period 1 from lift to right and goes from top to bottom in group VIII so we found Helium (He) element.