Statement-1: Promethium is a man mae element.
Statement-2: It is radioactive and has been prepared by artifical means.

Statement-1: Promethium is a man made element. Statement-2: Four water molecules are coordinated to Cu^(+) ion in water.

Statement-1: silver is a transition element. Statement-2: silver atom has completely filled d-robitals (4d^(10)) in its ground state.

Statement-1: The study of chemistry of radon is very difficult Statement-2: Radon is radioactive with very short half-life

Statement 1 : Radioactivity is a nuclear phenomenon. Statement 2 : Radioactivity is the phenomenon of spontaneous emission of certain invisible radiations from the nuclei of the atoms of some elements.

Statement -1 : Actinoids are very difficult to study. Statement-2 : Actinoids are radioactive elements having very short half lives especially of later members of actinides.

The statement that ranitidine is an antacid has been given because?

The statement that ranitidine is an antacid has been given because?