• Chlorine is more chemically reactive than chloride because it is more unstable. When an atom has an unequal number of protons and electrons it is an ion. Do you like rain. A chlorine atom has an atomic number of 17. Correct answer to the question How does an atom of chlorine-37 become a chloride ion with a -1 charge? "# A given atom, say #"chlorine"# or #"sodium"# has a given number of protons, fundamental positively charged NUCLEAR particles, which is given by #Z#, the atomic number.For #Cl#, #Z=17#; for #Na#, #Z=11#.Chlorine atoms tend to gain electrons to form negatively charged ions with 18 electrons (the difference between … When it does, the sodium atom becomes a sodium ion with a charge of positive one (+1). Chlorine atoms gain one electron to become a chloride ion (Cl−). The sodium ion Na + is a sodium atom less one electron; the chlorine ion Cl − is a chlorine atom with one electron more than normal. How many electrons does Li atom lose to become an ion? 1 See answer Answer 5.0 /5 7. calipriester +9 ... 27 minutes ago There are two main isotopes of chlorine. Looking at Ions We've talked about ions before. When a chlorine atom gains an electron, its outermost principal energy level achieves an octet. Potassium forms ions with a positive charge. It has a charge of 1 and is written Cl.When an atom of sodium donates its sole valence electron to an atom of chlorine, the result-ing positive and negative charges pull both ions tightly together, forming an ionic bond (Figure 2.4c). The atomic number of an element, also called a proton number, tells you the number of protons or positive particles in an atom.A normal atom has a neutral charge with equal numbers of positive and negative particles. Ions. This makes Chlorine atoms prone to accepting a loose electron to complete its outer shell and therefore form the highly stable Chloride ion, Cl- as shown to the right. [2] The covalent radii of the main group elements are given in … Answer to Calculate the charge for a chlorine (CI) ion if a chlorine atom gains an electron to become an ion. Expert Answer 100% (2 ratings) Every atom wants to complete its octet i.e there must be eight electrons in its outermost shell. 17 35.45 O A. d=D. 8) In order to become an ion, an atom of chlorine must _____. Now, let's consider chlorine atom, Cl: 1s 2 2s 2 2p 6 3s 2 3p 5. • Chloride has achieved the Argon electron configuration, therefore, stable than the chlorine atom. It could be the ions in the air affecting your moods. 1. Ions can be created by chemical reactions. … An atom that has more or fewer electrons in orbit than protons in its nucleus is called an ion.Once the electron from its valence shell has been transferred, the sodium atom will be missing an electron; it therefore will have a positive charge and become a sodium ion. Opposite charges attract one another while similar charges repel one another. Ions form salts, not molecules, but they perform many important functions in nutrition. 1. How to solve: How many electrons will chlorine gain or lose when it forms an ion? When an atom loses an electron or 2, it has more protons than electrons, and so more positive charges than negative. The neutral chlorine atom has acquired a negative charge by gaining an electron. Na atom loses 1 electron and becomes Na+ ion. Chlorine is a chemical element with the symbol Cl and atomic number 17. An ion is an atom which has an electrical charge, beacause it has either lost some of the electrons or received extra electrons (electrons are negatively charged). Chlorine in its free form is very dangerous if you breathe the fumes or come in contact with the gas. Chlorine undergoes reduction when it forms the chloride ion (Cl-). The size of an atom can be estimated by measuring the distance between adjacent atoms in a covalent compound. b. to attain a noble-gas electron configuration. O C. The atom loses 1 proton, to make a total of 36. The process that changes a chlorine atom into a chloride ion is a reaction known as a reduction reaction. The electronic configuration for the chloride anion is: The atom gains 1 electron, to make a total of 18. Top Answer. Metal atoms lose electrons becoming positively charged ions. Under standard conditions, the element is a yellow-green gas. And because ions that have a negative charge are called anions, it’s now called the: Wiki User Answered . So chlorine becomes an ion with a single negative charge. a) gain an electron b) form a covalent bond c) lose an electron d) form a hydrogen bond Answer: a Difficulty: Medium Learning Objective 1: LO 2.1 Describe the structure of an atom and explain how its structure functions in elements and chemical bonds. Or, it can gain electrons and become negatively charged (the number of electrons would be more than the number of protons giving it an overall negative charge). See Answer. Because the sodium ion has a positive charge, and the chlorine ion has a negative charge, they are attracted to each other, and form an ionic bond. In the case of physical ionization in a fluid (gas or liquid), "ion pairs" are created by spontaneous molecule collisions, where each generated pair consists of a free electron and a positive ion. But on the other hand an atom is a neutral species therefore have no charge on them. The Chloride Ion. how many electrons does chlorine need to gain to become an ion? The sodium atom becomes a positive ion,, and the chlorine atom becomes a negative ion. In chemistry an atom of a particular element is said to be reduced when it gains an electron (from another atom). The formula of this compound would therefore be KCl. O B. Essentially, when atoms gain or lose electrons, they become ions. I'm thinking it's either B or D but im not too sure. 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