Which of the following elements does not exhibit electrovalency ?
(a) calcium
(b) chromium
(c) carbon
(d) cadmium
Give the symbols for the following elements. (a) iron (f) silicon (b) sodium (g) boron (c) carbon (h) chlorine (d) sulphur (j) zinc (e) helium (k) gold
What is a chemical symbol? Write the chemical symbols of the following elements: nitrogen, calcium, boron, gold, and argon
6. Write the symbols for the elements chlorine, calcium, beryllium, nickel, helium, and oxygen.