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प्रश्न
Write the radical of the following valency:
Zinc
पर्याय
1+
2+
3+
1−
2−
3−
उत्तर
2+
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संबंधित प्रश्न
A student wants to have 3.011 × 1023 atoms each of magnesium and carbon elements. For this purpose, he will have to weigh :
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Match the non-metallic elements – with their correct symbols. Non-metallic elements are:
| Non-Metallic elements | Symbol |
| (a) Carbon | (1) O |
| (b) Chlorine | (2) I |
| (c) Oxygen | (3) Si |
| (d) Phosphorus | (4) C |
| (e) Hydrogen | (5) Cl |
| (f) Nitrogen | (6) P |
| (g) Iodine | (7) F |
| (h) Bromine | (8) H |
| (i) Fluorine | (9) S |
| (j) Silicon | (10) Br |
| (k) Sulphur | (11) N |
State the type of element for the following:
Neon
State the type of element for the following:
Chlorine
Write the radical of the following valency:
Oxygen
Write the chemical formula of the following:
magnesium oxide
Write the chemical formula of the following:
zinc oxide
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The first letter of a symbol is always written as a ______ letter and the second letter as a ______ letter.
