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rational.js: tools and libraries using rational numbers.
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JavaScript
/*
* rational.js - Javascript tools and libraries based around rational numbers.
* Copyright (C) 2013 Dylan Ferris
*
* This file is part of rational.js.
*
* rational.js is free software: you may redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* rational.js is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with rational.js. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @class Chemistry
* @name chemistry
*/
var chemistry = {};
/**
* Returns the quantum numbers of the nth electron, starting at n = 0
*
* @param {Integer} n the number of electrons before this one
* @returns {Array} [n, l, m_l, m_s]
*/
chemistry.quantum_numbers_of_atoms_electron = function(n) {
switch (n) {
// 1s
case 0: return [1, 0, +0, +1/2];
case 1: return [1, 0, +0, -1/2]; // He
// 2s
case 2: return [2, 0, +0, +1/2];
case 3: return [2, 0, +0, -1/2];
// 2p
case 4: return [2, 1, +0, +1/2];
case 5: return [2, 1, +1, +1/2];
case 6: return [2, 1, -1, +1/2];
case 7: return [2, 1, +0, -1/2];
case 8: return [2, 1, +1, -1/2];
case 9: return [2, 1, -1, -1/2]; // Ne
// 3s
case 10: return [3, 0, +0, +1/2];
case 11: return [3, 0, +0, -1/2];
// 3p
case 12: return [3, 1, +0, +1/2];
case 13: return [3, 1, +1, +1/2];
case 14: return [3, 1, -1, +1/2];
case 15: return [3, 1, +0, -1/2];
case 16: return [3, 1, +1, -1/2];
case 17: return [3, 1, -1, -1/2]; // Ar
// 3d
case 18: return [3, 2, +0, +1/2];
case 19: return [3, 2, +1, +1/2];
case 20: return [3, 2, -1, +1/2];
case 21: return [3, 2, +2, +1/2];
case 22: return [3, 2, -2, +1/2];
case 23: return [3, 2, +0, -1/2];
case 24: return [3, 2, +1, -1/2];
case 25: return [3, 2, -1, -1/2];
case 26: return [3, 2, +2, -1/2];
case 27: return [3, 2, -2, -1/2];
// 4s
case 28: return [4, 0, +0, +1/2];
case 29: return [4, 0, +0, -1/2];
// 4p
case 30: return [4, 1, +0, +1/2];
case 31: return [4, 1, +1, +1/2];
case 32: return [4, 1, -1, +1/2];
case 33: return [4, 1, +0, -1/2];
case 34: return [4, 1, +1, -1/2];
case 35: return [4, 1, -1, -1/2]; // Kr
// 5s
case 36: return [5, 0, +0, +1/2];
case 37: return [5, 0, +0, -1/2];
// 4d
case 38: return [4, 2, +0, +1/2];
case 39: return [4, 2, +1, +1/2];
case 40: return [4, 2, -1, +1/2];
case 41: return [4, 2, +2, +1/2];
case 42: return [4, 2, -2, +1/2];
case 43: return [4, 2, +0, -1/2];
case 44: return [4, 2, +1, -1/2];
case 45: return [4, 2, -1, -1/2];
case 46: return [4, 2, +2, -1/2];
case 47: return [4, 2, -2, -1/2];
// 5p
case 48: return [5, 1, +0, +1/2];
case 49: return [5, 1, +1, +1/2];
case 50: return [5, 1, -1, +1/2];
case 51: return [5, 1, +0, -1/2];
case 52: return [5, 1, +1, -1/2];
case 53: return [5, 1, -1, -1/2]; // Xe
// 4f
case 54: return [4, 3, +0, +1/2];
case 55: return [4, 3, +1, +1/2];
case 56: return [4, 3, -1, +1/2];
case 57: return [4, 3, +2, +1/2];
case 58: return [4, 3, -2, +1/2];
case 59: return [4, 3, +3, +1/2];
case 60: return [4, 3, -3, +1/2];
case 61: return [4, 3, +0, -1/2];
case 62: return [4, 3, +1, -1/2];
case 63: return [4, 3, -1, -1/2];
case 64: return [4, 3, +2, -1/2];
case 65: return [4, 3, -2, -1/2];
case 66: return [4, 3, +3, -1/2];
case 67: return [4, 3, -3, -1/2];
// 5d
case 68: return [5, 2, +0, +1/2];
case 69: return [5, 2, +1, +1/2];
case 70: return [5, 2, -1, +1/2];
case 71: return [5, 2, +2, +1/2];
case 72: return [5, 2, -2, +1/2];
case 73: return [5, 2, +0, -1/2];
case 74: return [5, 2, +1, -1/2];
case 75: return [5, 2, -1, -1/2];
case 76: return [5, 2, +2, -1/2];
case 77: return [5, 2, -2, -1/2];
// 6s
case 78: return [6, 0, +0, +1/2];
case 79: return [6, 0, +0, -1/2];
// 6p
case 80: return [6, 1, +0, +1/2];
case 81: return [6, 1, +1, +1/2];
case 82: return [6, 1, -1, +1/2];
case 83: return [6, 1, +0, -1/2];
case 84: return [6, 1, +1, -1/2];
case 85: return [6, 1, -1, -1/2]; // Rn
// 5f
case 86: return [5, 3, +0, +1/2];
case 87: return [5, 3, +1, +1/2];
case 88: return [5, 3, -1, +1/2];
case 89: return [5, 3, +2, +1/2];
case 90: return [5, 3, -2, +1/2];
case 91: return [5, 3, +3, +1/2];
case 92: return [5, 3, -3, +1/2];
case 93: return [5, 3, +0, -1/2];
case 94: return [5, 3, +1, -1/2];
case 95: return [5, 3, -1, -1/2];
case 96: return [5, 3, +2, -1/2];
case 97: return [5, 3, -2, -1/2];
case 98: return [5, 3, +3, -1/2];
case 99: return [5, 3, -3, -1/2];
// 6d
case 100: return [6, 2, +0, +1/2];
case 101: return [6, 2, +1, +1/2];
case 102: return [6, 2, -1, +1/2];
case 103: return [6, 2, +2, +1/2];
case 104: return [6, 2, -2, +1/2];
case 105: return [6, 2, +0, -1/2];
case 106: return [6, 2, +1, -1/2];
case 107: return [6, 2, -1, -1/2];
case 108: return [6, 2, +2, -1/2];
case 109: return [6, 2, -2, -1/2];
// 7s
case 110: return [7, 0, +0, +1/2];
case 111: return [7, 0, +0, -1/2];
// 7p
case 112: return [7, 1, +0, +1/2];
case 113: return [7, 1, +1, +1/2];
case 114: return [7, 1, -1, +1/2];
case 115: return [7, 1, +0, -1/2];
case 116: return [7, 1, +1, -1/2];
case 117: return [7, 1, -1, -1/2]; // Uuo
}
}
if(typeof(exports) !== 'undefined') {
exports.chemistry = chemistry;
}