CHEM 131 Lecture Notes - Lecture 3: Diatomic Molecule, Radioactive Decay, Atomic Number
14 Nov 2016
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1p there is only 1 proton: 1. Particle: he2+ - 2 protons. Balance the following nuclear equations (that is, identify the product x): 84. 0e an electron outside of the nucleus. Balance the following nuclear equations (that is, identify the product x): 33. 0 particle: it is an instantaneous reaction, the spontaneous breakdown of a nucleus by the emission of particles and/or electromagnetic radiation. Nuclear transmutation: the change undergone by a nucleus as a result of bo(cid:373)bard(cid:373)e(cid:374)ts by (cid:374)eutro(cid:374)s . Nuclear stability: certain numbers of neutrons and protons are extra stable. N or p = 2, 8, 20, 50, 82, and 126: nuclei with even numbers of both protons and neutrons are more stable than those with odd numbers of neutrons and protons. Periodic table: it is a systematic catalog of the elements, 1. Rows 1-3 is different arrangement: grouped in specific column or row based on similar properties. Each row is called a period: there are 7 rows.
