An arrangement of elements in which the elements are separated based on properties
The atomic number of every element represents the number of protons in the nucleus of an atom of that element.
The total number of protons and neutrons in an atom. Number of neutrons = mass number – atomic number
http://www.google.com/imgres?imgurl=http://www.hibbing.edu/chem/V.08/isotope_symbols_1.jpg&imgrefurl=http://www.rapidgraphs.com/qwr.php%3Fq%3Disotope- notation&usg=__12aXBa5PuDqU9mdbBqV92mGRrt0=&h=344&w=514&sz=40&hl=en&start=18&zoom=1&tbnid=fj4qDT6dfXQW2M:&tbnh=105&tbnw=157&ei=9lZcTYD5O5GSgQfB44SmDQ&prev=/images%3Fq%3 Dshorthand%2Bnotation%2Bfor%2Bchemical%2Bsymbols%26um%3D1%26hl%3Den%26rlz%3D1T4ADRA_enUS418US418%26biw%3D1259%26bih%3D560%26tbs%3Disch:1&um=1&itbs=1&iact=rc&dur=445&oei= 71ZcTZmxJoHegQenwcD-DQ&page=2&ndsp=21&ved=1t:429,r:12,s:18&tx=99&ty=18 Chemical Symbol Shorthand Notation
Electrons in an atom are equal to the number of protons.
The nucleus is made of p + n 2 protons are close together there is a strong attraction Nuclear Force
Atoms (of the same element) that have the same number of protons but a different number of neutrons. Do Isotopes have different mass numbers?
Hydrogen Hydrogen-1 (Hydrogen) Hydrogen-2 (Deuterium) Used as a moderator in nuclear reactors Hydrogen-3 (Tritium) Used in the production of Hydrogen bombs
There are 3 isotopes of Oxygen. Oxygen-16, Oxygen-17 and Oxygen 18. Write each in shorthand notation. There are 3 isotopes of Chromium. Chromium- 50, Chromium-52 and Chromium-53. How many neutrons are in each isotope?