Question

Which of the following represent the correct Element and Symbol Pair?

(i) Cobalt –CO

(ii) Copper-Cu

(iii)Potassium- K

(iv) Calcium-C

(v) Silicon-Sl

(vi) Silver- Ag

(vii)Barium-Ba

(viii)Iron-Ir

• A. i, vii, v, vii
• B. ii,iii, vi, vii
• C. v, vi, ii, iv
• D. iii, v, vi,vii

Answer 1

The correct option is B

ii,iii, vi, vii

Symbols of some elements are formed with the first letter of the name and second letter of the symbol is taken from the letters appearing later in the same name.

Other symbols have been taken from the names of the elements in Latin, German or Greek.

Second letter of a symbol is always in small characters.

Cobalt-Co and not CO, Copper (Cuprum)-Cu, Potassium (Kalium)-K, Calcium-Ca and not C, Silicon-Si not Sl, Silver (Argentum)-Ag, Barium-Ba, Iron (Ferrum)-Fe.