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Chapter 2: Problem 21

How many metals are in the following groups? (a) Group 1 (b) Group 13 (c) Group 17

Short Answer

Expert verified
Answer: There are 6 metals in Group 1, 4 metals in Group 13, and no metals in Group 17.

Step by step solution

01

Group 1 - Alkali Metals

Group 1 elements are all metals called Alkali metals, which include Hydrogen, Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium. However, Hydrogen is not a metal, so there are 6 metals in Group 1.
02

Group 13 - Boron Group

Group 13 elements are called the Boron group which include Boron, Aluminum, Gallium, Indium, and Thallium. Boron is a metalloid, meaning it has properties of both metals and non-metals, while the remaining 4 elements in this group are all metals. Thus, there are 4 metals in Group 13.
03

Group 17 - Halogens

Group 17 elements are called Halogens, which include Fluorine, Chlorine, Bromine, Iodine, and Astatine. All of these elements are non-metals, except Astatine which is considered a metalloid. Hence, there are no metals in Group 17. In conclusion, there are 6 metals in Group 1, 4 metals in Group 13, and no metals in Group 17.

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Most popular questions from this chapter

Write the formulas and names of the following: (a) An ionic compound whose cation is a transition metal with 25 protons and 22 electrons and whose anion is an oxoanion of nitro- gen with two oxygen atoms. (b) A molecule made up of a metalloid in Group 13 and three atoms of a halogen in period 2 . (c) An ionic compound made up of an alkaline earth with 20 protons, and an anion with one hydrogen atom, a carbon atom, and 3 oxygen atoms.

How many nonmetals are in the following periods? (a) period 2 (b) period 4 (c) period 6

State in your own words the law of constant composition.

Write the formulas for the following molecules. (a) water (b) ammonia (c) hydrazine (d) sulfur hexafluoride (e) phosphorus pentachloride

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