All about the Periodic table

1. It is a Latin word wherein the two-letter symbol for the element Gold was obtained.
3. This element is classed as an alkali earth metal. It was discovered in 1808 by Sir Humphry Davy.
7. It was the name for Titanium during 1791 given by British clergyman William Gregor.
8. A substance that is a mixture of two or more metals, or of a metal with a nonmetallic material.
9. The study of spectra, especially to determine the chemical composition of substances and the physical properties of molecules, ions, and atoms.
12. It causes opposite electric charges to attract each other and like charges to repel each other.
14. One of two or more species of atom having the same atomic number, hence constituting the same element, but differing in mass number.
15. Metallic element that has an incomplete penultimate electron shell and variable valences, and typically forms colored compounds.
16. The process of building up the nucleus of an element from protons and neutrons.
19. Meaning of the Greek word 'phosphoros'.
20. A chemically inert rare gas belonging to Group 18 of the periodic table.
22. Meitnerium's previous name.
23. It is the Anglo-Saxon name for metal.
24. Meaning of the Latin word 'rubidus' wherein Rubidium was derived.

2. Device used by the scientists in order to measure atomic mass.
3. Because of the flammability of Sulfur, alchemists regarded it as essential in ___________.
4. She is a Polish-born french chemist who twice won the Nobel Prize and is best known for her investigations of radioactivity with her husband.
5. It is the second largest object in the asteroid belt after the dwarf planet Ceres. The name Palladium was obtained in this word.
6. In chemistry, it states that many of the physical and chemical properties of the elements tend to recur in a systematic manner with increasing atomic number.
10. A process in which the atom breaks into smaller "daughter" components.
11. Chemically the simplest substances and hence cannot be broken down using chemical methods.
13. It was discovered in 1952 by American chemist Albert Ghiorso and his colleagues in the produced by a thermonuclear explosion.
17. A radioactive mineral composed of of the minerals uraninite and is one of the main ores of Uranium.
18. It ranks about 12th in abundance among elements in Earth's crust.
21. A mixture of concentrated hydrochloric and nitric acids that is still occasionally used in the chemical laboratory for dissolving gold and platinum.