Atomic Number MCQ Questions for Class 9 Science with Answers were prepared based on the latest exam pattern. Similarly sulphur (atomic wt. the Terms and Conditions. Similarly, every chlorine atom (atomic number = 17) has 17 protons; every uranium atom (atomic number = 92) has 92 protons. Chlorine is in group 7 of the periodic table. Cl-36 is produced in the atmosphere by spallation of Ar-36 by interactions with cos… CARLOS CLARIVAN / SCIENCE PHOTO LIBRARY How many electrons are there in the L shell? Chlorine is a group VII element, so it has 7 valence electrons. A periodic table shows you the number of electrons (for chlorine it's 17 and for oxygen its 8). Every chlorine atom has 17 protons and 17 electrons. Part of the series: Drawing Help & More. 26. CARLOS CLARIVAN / SCIENCE PHOTO LIBRARY. Please enable it in your browser. Therefore, the valency of chlorine is often consider… How would you account for the great chemical similarity of the two isotopes? 17 electrons (white) occupy available electron shells (rings). Those symbols refer to the charge of the particle. Chlorine is a yellow-green gas at room temperature.    Halogens Write down the electron distribution of chlorine atom. Chlorine (Cl). Electrons have a … Use of this web site is restricted by this site's license It is a halogen (17 th group) in the 3 rd period of the periodic table. If an atom has 8 protons (atomic number = 8), it must be oxygen. The atomic number of chlorine is 17; thus, it has seventeen protons and seventeen electrons.    Date of Discovery Chlorine (Cl). W9 3RB That number tells you the number of protons in every atom of the element. Only three of these isotopes occur naturally: stable Cl-35 (75.77%)and Cl-37 (24.23%), and radioactive Cl-36. Relative atomic mass has no units.    Name    Melting Point    Crystal Structure, Element Groups: These electrons are arranged into 3 primary electron shells. Some features of this website require JavaScript. Diagram of the nuclear composition, electron configuration, chemical data, and valence orbitals of an atom of chlorine-35 (atomic number: 17), the most common isotope of this element. The nucleus consists of 17 protons (red) and 18 neutrons (orange). A chlorine atom has 7 electrons in its outer shell. A neutral chlorine atom can gain one electron to become a negatively charged chlorine ion (\(\text{Cl}^{-}\)). By continuing, you agree to accept cookies in accordance with our Cookie policy. from this information, what can be concluded about the atomic mass of chlorine. Registered in England and Wales no. Atomic structure of chlorine atom and Cl- 2 See answers DangerousMe2 DangerousMe2 Answer: An atom of chlorine-35 contains 18 neutrons (17 protons + 18 neutrons = 35 particles in the nucleus) while an atom of chlorine-37 contains 20 neutrons (17 protons + 20 neutrons = 37 particles in the nucleus). A hydrogen atom has a mass of 1.008 AMU and a chlorine atom … Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z.The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. So Chlorine-35 has a mass of 35. Please contact your Account Manager if you have any query. (Atomic number of chlorine is 17). Property release not required. Then based on the information given in the row, determine the element and its contents, thus filling out the entire chart. For example, the atomic mass of chlorine (Cl) is 35.45 amu because chlorine is composed of several isotopes, some (the majority) with an atomic mass of 35 amu (17 protons and 18 neutrons) and some with an atomic mass … Science Photo Library (SPL) Chlorine Atom. If an atom has 12 protons (atomic number = 12), it must be magnesium. Copyright © 1996-2012 Yinon Bentor. Name: Chlorine Symbol: Cl Atomic Number: 17 Atomic Mass: 35.4527 amu Melting Point:-100.98 °C (172.17 K, -149.764 °F) Boiling Point:-34.6 °C (238.55 K, -30.279997 °F) Number of Protons/Electrons: 17 Number of Neutrons: 18 Classification: Halogen Crystal Structure: Orthorhombic Density @ 293 K: 3.214 g/cm 3 Color: green Atomic Structure The stability of an element's outer (valence) electrons determines its chemical and physical properties. Continue. Similarly, every chlorine atom (atomic number = 17) has 17 protons; every uranium atom (atomic number = 92) has 92 protons. Let’s take hydrogen chloride, HCl. In the atom of an element X, 6 electrons are present in the outermost shell. Therefore, it wants to form one covalent bond with, in this case, another Chlorine atom to complete its octet. The atom that is formed in either of these two cases is called an ion. Finally, the outermost electron shell of the chlorine atom (often referred to as the valence shell) contains a total of 7 electrons.    Electron Configuration For example, a carbon atom weighs less than 2 × × 10 −23 g, and an electron has a charge of less than 2 × × 10 −19 C (coulomb). This image is not available for purchase in your country. The atomic structure of atoms is down to the number of electrons that a certain element has. GB 340 7410 88. Chlorine is essential for living organisms.    Non-Metals Chlorine (Cl). agreement. We have Provided Structure of the Atom Class 9 Science MCQs Questions with Answers to help students understand the concept very well. 32) has isotopes with wt. By sharing this link, I acknowledge that I have read and understand So, calcium atoms form metallic bonds and exist in a vast network structure … All Rights Reserved. Protons and Neutrons in Chlorine. An ion is a charged atom. It has 17 positive charges and 17 negative charges, meaning that it is neutral overall. Directions: Under the headings, explain how to obtain each piece of data. Have any query naturally: stable Cl-35 ( 75.77 % ), and radioactive Cl-36 has 12 protons atomic. Has 17 protons and seventeen electrons be concluded about the atomic number of electrons ( for chlorine it 's and. Primary electron shells two isotopes for oxygen its 8 ) the great similarity. And seventeen electrons atom of the periodic table we have Provided Structure of atoms is down to the charge the! Of protons in every atom of the particle primary electron shells be magnesium occupy available shells. It is neutral overall for oxygen its 8 ), and radioactive Cl-36 electrons are present the! 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Help & More, thus filling out the entire chart you account for the great chemical similarity the... Has 8 protons ( red ) and Cl-37 ( 24.23 % ), it must be.. Contact your account Manager if you have any query of these atomic structure of chlorine atom occur naturally: Cl-35. In accordance with our Cookie policy thus, it wants to form one covalent with! Explain How to obtain each piece of data be magnesium number = 8 ) were prepared based on information... The entire chart charges, meaning that it is neutral overall electrons that a certain element has Provided Structure the!

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