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प्रश्न
State the type of element for the following:
Sulphur
पर्याय
Metal
Non-metal
Metalloid
Noble gas
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उत्तर
Non-metal
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संबंधित प्रश्न
What is the significance of the symbol of an element ? Explain with the help of an example.
Explain the significance of the symbol H.
The symbols of the elements cobalt, aluminium, helium and sodium respectively written by a student are as
follows. Which symbol is the correct one ?
What do the following symbol stand for?
2H
Explain the terms 'valency' and 'variable valency'.
Match the formulas of the following of bases with their correct names.
Bases – (a) NaOH (b) KOH (c) Ca(OH)2 (d) Zn(OH)2
Names – (1) Potassium hydroxide (2) Zinc hydroxide (3) Aluminium hydroxide (4) Calcium hydroxide (5) Sodium hydroxide
State the valency of the following metallic element and write symbol with the valency
Magnesium
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Iron
write symbol with the variable valency
______ of some elements are derived from Latin or Greek names of the elements.
Which letter is never used in any element symbol?
