1 The York Beer & Cider Festival organised by York CAMRA, is the North of England's largest beer festival, held annually over 4 days in the third week of September in marquees on 150 acres of parkland on York's Knavesmire. 2  The 2014 event was held between 17th and 20th September with over 400 real ales and over 100 ciders. ÄeskÃ½ Pivni PivnÃ­ (Festival Czech Beer) festival is the Biggest czech beer, festival is 17 days long and held every year In may In. 2  Prague Pilsner fest is the big festival held every year In august In.  plzeÅ
View Full Document. Isotopes â¢ Nuclide â A type of atom characterized by the number of protons and neutrons in the nucleus of every atom of this type. â¢ Isotopes â Atoms with the same number of protons (same element) but containing different numbers of neutrons. â Nuclides with same atomic number but different atomic masses. This preview has intentionally blurred sections.
Atomic number and mass number. The atomic number of an atom is the number of protons it contains. All the atoms of a particular element have the same atomic number (number of protons). The atoms of different elements have different numbers of protons. For example, all oxygen atoms have 8 protons and all sodium atoms have 11 protons. The mass number of an atom is the total number of protons and neutrons it contains.