An alloy has a low melting point and is,therefore,used for electrical fuses. Name the alloy and write its constituents.

In which state does the element phosphorus exist at room temperature?

State whether the following statement is true or false:
At ordinary temperature,the surfaces of metals such as magnesium,aluminium,zinc,lead,etc.,are covered with a thin layer of oxide which prevents the metal from further oxidation.

Write the names and symbols of the constituents present in the following alloys:
$(a)$ Brass
$(b)$ Bronze
$(c)$ Solder

What is the number of electrons lost by a metal atom to form a positive ion called?

What is the atomic number of sulphur?