The tendency to receive electrons is called-

It is easy to make stone by beating metals. Which property of the metal does it indicate?

Electronic configuration of the outer shell of the element Gd with atomic number 64 is

Which of the following gases turn lime water milky?

If the pH value of a substance is lower than 7, it would be considered as–

Isotopes of an element do not have ______.

Which of the following is not necessary for photosynthesis?

Which energy is converted into electrical energy by a solar cell?