Which of the following elements conduct electricity and also melts below 100°C ?

Related Mcqs:

How many isotopes have odd atomic number ?

A. 154 B. 280 C. 86 D. 300...

The sample of isotopes of an element which needs not to be vaporized in the vaporization chamer_________________?

A. Gas B. Liquid C. Volatile solid D. All...

Which of the following terms is used for the mass of chlorine 35.5 ?

A. relative atomic mass B. mass number C. atomic weight D. relative isotopic mass...

Which statement is consistent with Hunds rule ?

A. Electrons fill orbitals with parallel spins until all the orbitals of the same energy are half filled then they go into sub-shells with anti-parallel (opposite) spin. B. The electrons in the same atom cannot have the same four quantum numbers C. There is maximum of two electrons is an orbital. D. None...

Fruit juices and fizzy drinks such as lemonade are often sold in aluminium cans. What is the most important reason aluminium is a suitable metal ?

A. aluminium can be recycled B. aluminium has very low density C. aluminium is the most abundant metal in the earth crust D. aluminium is resistant to corrosion by organic acids....