How many valence electrons does silicon (Si) have? 8 Argon is a noble gas with an electron configuration of [Ne]3s^2\\3p^6. Next element of the periodic table. 22 neutrons in an average atom of Argon. Neutron is 1.0086652 atomic mass units. Question . how many protons does the element argon have? A cation carries a positive charge and has more protons than electrons. argon has … Explain that argon has 18 protons and 18 electrons. Calculate (A) the number of electrons (B) number of protons (C) number of neutrons(D) mass number. Because the third energy level has eight electrons and is therefore full (3s 2 3p 6) it is called a noble gas. Identify the element from the electron configuration: [Ar]4s^2 3d^2. Find more answers. 5 years ago . | EduRev JEE Question is disucussed on EduRev Study Group by 513 JEE Students. Chlorine is before argon on the periodic table, so it does not have all the electrons argon has in its ground state. This tells you that it has 18 protons. 2 Answers/Comments. Add your answer and earn points. How many core electrons does argon have? We are suppose to do:-An isotope of that atom-An ion of that atom, with a positive charge. Only the atoms in the elements of Group or Family 18 on the Periodic Table have full outer shells. Looking at the picture, you can see there are two electrons in shell one, eight in shell two, and eight in shell three. I am doing a project on the element Argon. Brainly User Brainly User Neutrons:22 Electrons:18 Still have questions? Unlock answer. You'll also have 83 argon atoms, and 667 calcium atoms. That means there are 18 electrons in an argon atom. Source(s): https://shrink.im/a9iuQ. Ask your question. Answered on 22 May 2019. As you learn about elements with more than eighteen electrons you will find that shell three can hold more than eight. Choose one answer. * In argon we see that the orbitals are completely filled. Hence, we can say that both are isoelectronic, having the same of number of neutrons. The atomic mass on my periodic table says 39.948, but since that's an average, i'll round to 40. Therefore, argon has no electric charge (as with other elements). The real-world implications of this is that noble gases have no shareable electrons. 18 electrons, means that there are 2 in the inner orbital, 8 in the middle orbital, and 8 valence electrons. The electrons like to be in separate shells/orbitals. Note. The electron configuration of argon is 1s22s22p63s23p6. You have 1 free answer left. If neutral, there would have to be 18 protons for the 18 electrons. If there are more electrons than a shell can hold, a new shell starts. See answers (1) Ask for details ; Follow Report Log in to add a comment Answer 5.0 /5 2 +2 taffy927x2 and 2 others learned from this answer 10 core electrons are in argon. It always has 18 Protons, and 18 electrons, but neutrons differ. 0 0. tremble. :) … In the third shell, it holds a total of 2+6=8 electrons, so it has 8 valence electrons. A. argon (Ar) B. silicon (Si) C. potassium (K) D. magnesium (Mg) C. 14 D. 28 Silicon (Si) has 4 valence electrons. Helium, neon, and argon are all noble gases located in the last group (18th group) of the periodic table. 4 years ago. Also mention the quantum numbers of the valence electron. New questions in Chemistry. 3 B. Anonymous. The chemical symbol for Argon is Ar. This means that if you have 1000 atoms of 40 K, 1.2 billion years later you'll have 500, and 1.2 billion years after that you'll have 250. Before 1962, argon and the other noble gases were considered to be chemically inert and unable to form compounds; however, compounds of the heavier noble gases have since been synthesized. For the isotope, I did Argon 40, which has 18 protons, 22 nuetrons, and 18 electrons. 548 views Verified answer. There are 2 electrons on the first energy level, 8 electrons on the second level, and 8 electrons on the third energy level. Proton is, I think, 1.0078252 amu. Wait, I am looking it up in a reference. In fact, the number of valence electrons goes up by one for each step across a period until the last element is reached. The number of protons of an atom cannot change via any chemical reaction, so you add or subtract electrons to get the correct charge. You must recognize that the second principal energy level consists of both the \(2s\) and the \(2p\) sublevels and so the answer is three. The outer shell of most atoms is not full. * We see that argon is a noble gas. This full valence shell makes argon very stable and extremely resistant to bonding with other elements. More about the history and places to find argon. Nitrogen makes up DNA both in the form of nitrogen bases and in neurotransmitters. Find more answers . Have students complete the energy level model for argon in their periodic table. The protons and electrons cancel each other out because protons produce a positive charge, electrons a negative charge, and they have the same amount. Share 4. 5.0 1 vote 1 vote Rate! I'm assuming you're referring to the octet rule, which states that all elements "want" to reach 8 valence electrons. How many protons neutrons and electrons does argon have? Looking for something else? … Source(s): protons element argon have: https://shortly.im/cnfo3. It's mass, 40, minus 18 (electrons) equals 22 (neutrons). For the best answers, search on this site https://shorturl.im/axFwP. A. Argon's complete octet of electrons indicates full s and p subshells. Your welcome! i need to know the number of protons,neutrons,and electrons the element argon has. Answer (1 of 4): 18 protons, 18 electrons, and 22 protons. Updated 27 days ago|12/13/2020 8:14:32 PM. It is mostly Argon-40; small amts. Therefore the Argon electron configuration will be 1s 2 2s 2 2p 6 3s 2 3p 6. How many valence electrons does boron have? Sep 10,2020 - Consider the argon atom . All noble gases have p orbitals (and energy layers) full of electrons. * Electron configuration: [Ne] 3(s(2)) 3(p(6)). It has five electrons in its outer shell, most of its compounds are trivalent. OC2735150. How many valence electrons does nitrogen have? For example, boron (B) has an atomic number of 5, therefore it has 5 protons and 5 electrons. Argon is the third-most abundant gas in the Earth’s atmosphere, at 0.934% (9340 ppmv). Electrons are particles that have a negative charge equal to -1. There are 22 neutrons in one atom of argon. 0 0. Oxygen is found in the sixth group, therefore it has six valence electrons. Protons are particles in the nucleus of an atom that have a positive charge equal to +1. 40-18 is 22. Get an answer. Lv 4. * The p orbital can hold a maximum of 6 electrons. a)1 b)6 c)4 d)2 answer:4 can you explain this answer ? So, it has 3 electron shells, and that will be its valence shell. The electronic configuration of anions is assigned by adding electrons according to Aufbau's building up principle. So, Argon-40 would seem to be: 18 electrons which requires 18 protons and 22 neutrons. Still have questions? Find more answers. The KLMN electron configuration of Argon is 2, 8, 8 each number referring to the electrons in the shells or energy levels of the atom. Argon Atomic Number. of -36 and -38. Shell number one can only hold 2 electrons, shell two can hold 8, and for the first eighteen elements shell three can hold a maximum of eight electrons. The relative atomic masses of two isotopes of an element are 15.9936 and 17.0036 amu. Since the outer shell electrons are fully filled, argon have no tendency to gain nor lose electrons. Since the 3s if now full we'll move to the 3p where we'll place the remaining six electrons. 6 c. 7 d. 8 An anion carries a negative charge and has more electrons than protons. Neutrons do not have a net electric charge, so the number of neutrons does not matter in the calculation. How many valence electrons does Argon (Ar) have? Neon, with its configuration ending in \(2s^2 2p^6\), has eight valence electrons. Argon's atomic number is 18, which means it has a total of 18 electrons, 18 protons, and 22 electrons. 4Looking at the periodic table, which element is a non-metal? We will abbreviate chlorine by using the neon core. a. Asked 10/14/2016 9:05:18 AM. Unfortunately, I do not have the information about neutrons. Rate! It can have either 3 or 5 valence electrons, as it can bond in the 2p and 2s orbitals outside. Ask your question. 1 See answer pi5lbibaysSwimg is waiting for your help. Rather like a puzzle box containing exactly the right number of pieces, argon and its five cousins does not have any subatomic shortages that need to be amended by donations from other elements, and it doesn't have any extras floating around to donate in turn. Electron present in the first shell (n=1) 2n^2=2(1)^2=2(1)=2 . Ti First, we see that the electron configuration is made of the core electrons (Ar) and the valence electrons (4s23d2). Nitrogen has either 3 or 5 valence electrons and is on the periodic table at the top of Group 15. Argon is a noble gas with electronic configuration of [Ne] 3s2 3p6. How many valence electrons does argon have? 0 b. Since Argon is a "noble gas," it already has 8 electrons, and does … How many electrons does this atom have m=1 ? s. Log in for more information. The electron configuration for Ca 2+ is the same as that for Argon, which has 18 electrons. 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