WebNeutral carbon-14 contains six protons, eight neutrons, and six electrons; its mass number is 14 (six protons plus eight neutrons). These two alternate forms of carbon are isotopes. Some isotopes are stable, but others can … WebMost of the elements important in biology need eight electrons in their outermost shell in order to be stable, and this rule of thumb is known as the octet rule. Some atoms can be …
chemistry chapter 7 Flashcards Quizlet
WebSep 23, 2024 · Aluminum has a mass number of 27. The number of neutrons in an aluminum atom is determined by subtracting the number of protons in the element from the element’s mass number. There are 13 protons in an atom of aluminum, so the equation would be 27-13=14. Some atoms of aluminum do not have 14 neutrons. WebMar 22, 2024 · Hg (transition metal)- has 80 electrons, 80 protons, and 121 neutrons Pt (transition metal)- has 78 electrons, 78 protons, and 117 neutrons Br (halogen)- has 35 electrons, 35 protons, and 45 neutrons Example 3.4.2 Write both A/Z and symbol-mass formats for the atoms in Example 3.4.1. Solutions Hg201 80 and Hg-201 Pt195 78 and Pt … grand forks holiday home tour
How to find the Protons, Neutrons and Electrons for Aluminum?
WebJun 2, 2024 · No matter how many electrons or neutrons an atom has, the element is defined by its number of protons. In fact, it's actually possible to have an atom consisting of only a proton (ionized hydrogen). The periodic table is arranged in order of increasing atomic number, so the number of protons is the element number. For hydrogen, the number of ... Webtwo electrons occupy the first shell eight electrons occupy the second shell one electron occupies the third shell This electronic structure can be written as 2,8,1 (each comma, or dot,... WebThe nucleus of an atom contains: A) Protons and electrons B) Protons and neutrons C) Electrons and neutrons D) Protons, neutrons and electrons E) Electrons only. How many electrons are in a neutral ¹Ca atom?⁴A) 2 B) 20 C) 21 D) 41. grand forks hockey rink