22. What common compounds does Argon form? 40. 1 1. This means that some Argon atoms have 18 neutrons, some 20 neutrons and some 22 neutrons the isotope with 22 neutrons is the most common and forms 99.6% of all Argon. There are 22 neutrons in one atom of argon. the mass is made up of both protons and neutrons... therefore 40 - 18 = # neutrons. argon has 22 neutrons It is a noble gas and belongs to period 3 and group 18 of the periodic table. Your welcome! The protons and electrons cancel each other out because protons produce a positive charge, electrons a negative charge, and they have the same amount. Tags: Question 24 . How many protons, neutrons and electrons does Argon have? Potassium (K) Calcium (Ca) Nitrogen (N) Neon (Ne) Tags: Question 25 . In order to write the Argon electron configuration we first need to know the number of electrons for the Ar atom (there are 18 electrons). Answer (1 of 4): 18 protons, 18 electrons, and 22 protons. Q. Argon (Ar) atom Bohr model video using the Periodic Table to determine the number of Protons, neutrons, the Atomic Mass, Atomic Number, number . :) … How many electrons does it have? Anonymous. N = 22. there are 22 neutrons. When we write the configuration we'll put all 18 electrons in orbitals around the nucleus of the Argon atom. answer choices . If an element has 83 protons, what is its atomic number and which element is it? What element has 20 protons? (Use your periodic table.) anon112516 September 20, 2010 . How many protons neutrons and electrons does argon have? Atomic number 83 and its identity is Bismuth. 4. In writing the electron configuration for Argon the first two electrons will go in the 1s orbital. answer choices . Argon was discovered by Sir William Ramsay in 1894. Argon has an atomic number of 18 and and Atomic mass of 40. The number of protons is what defines the element. is argon used in light bulbs? Please answer me asap! isotope is the element and mass number the mass number is protons+neutrons argon has 18 protons and this isotope has a mass of 40 so P+N = Mass number. in what field does argon belong? It is a nonmetal and a gas at room temperature. 18 + N = 40. argon has a molar mass of 40 and 18 prontons. SURVEY . Therefore, argon has no electric charge (as with other elements). Name: Argon Symbol: Ar Atomic Number: 18 Atomic Mass: 39.948 amu Melting Point:-189.3 °C (83.85 K, -308.74 °F) Boiling Point:-186.0 °C (87.15 K, -302.8 °F) Number of Protons/Electrons: 18 Number of Neutrons: 22 Classification: Noble Gas Crystal Structure: Cubic Density @ 293 K: 1.784 g/cm 3 Color: Colorless Gas Atomic Structure 18. anon252703 22 hours ago . Atomic number is the number of protons. - 3377908 This tells you that it has 18 protons. An atom of argon has 18 protons and 22 neutrons. On the periodic table, argon's atomic number is 18. Because its outer electron shell is full, it is chemically unreactive. 900 seconds . (Isotopes of an element have varying numbers of neutrons in the nucleus.) 5 years ago. anon110827 September 13, 2010 18 protons, 18 electrons, 40-18=22 neutrons. anon138682 January 2, 2011 . How many neutrons and electrons does argon have? Argon has 22 neutrons in its nucleus, and the atomic weight of argon is 39.948 atomic mass units. A gas at room temperature element has 83 protons, neutrons and electrons does argon have ( Ca ) (! Was discovered by Sir William Ramsay in 1894 as with other elements ) therefore, argon 's number. Belongs to period 3 and group 18 of the periodic table two electrons will go in the nucleus the. Writing the electron configuration for argon the first two electrons will go the. In one atom of argon go in the 1s orbital first two electrons will go in the 1s.! 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