Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 2: Problem 58

Give the name, atomic symbol, and group number of the element with each \(Z\) value, and classify it as a metal, metalloid, or nonmetal: (a) \(Z=33\) (b) \(Z=20\) (c) \(Z=35\) (d) \(Z=19\) (e) \(Z=13\)

Short Answer

Expert verified
Z=33: As, group 15, metalloid; Z=20: Ca, group 2, metal; Z=35: Br, group 17, nonmetal; Z=19: K, group 1, metal; Z=13: Al, group 13, metal.

Step by step solution

01

Identify Element with Z=33

Locate the element with atomic number 33 on the periodic table. The element is Arsenic with the symbol As and is in group 15. Arsenic is classified as a metalloid.
02

Identify Element with Z=20

Locate the element with atomic number 20 on the periodic table. The element is Calcium with the symbol Ca and is in group 2. Calcium is classified as a metal.
03

Identify Element with Z=35

Locate the element with atomic number 35 on the periodic table. The element is Bromine with the symbol Br and is in group 17. Bromine is classified as a nonmetal.
04

Identify Element with Z=19

Locate the element with atomic number 19 on the periodic table. The element is Potassium with the symbol K and is in group 1. Potassium is classified as a metal.
05

Identify Element with Z=13

Locate the element with atomic number 13 on the periodic table. The element is Aluminum with the symbol Al and is in group 13. Aluminum is classified as a metal.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

atomic number
The atomic number of an element, represented by the symbol \(Z\), is a fundamental concept in chemistry. It signifies the number of protons found in the nucleus of an atom. This number uniquely identifies an element and determines its position in the periodic table.
For instance:
  • For \(Z=33\), the element is Arsenic, which means there are 33 protons in an arsenic atom's nucleus.
  • Similarly, for \(Z=20\), the element is Calcium, corresponding to 20 protons in its nucleus.
The atomic number also influences the element's chemical behavior. As you move from one element to the next in the periodic table, the atomic number increases, introducing a new proton to the nucleus and often an electron to the cloud.
Understanding atomic numbers helps in predicting an element's properties and its reactions with other elements, making it a crucial part of studying chemistry.
element classification
Elements can be classified into three major categories based on their physical and chemical properties: metals, metalloids, and nonmetals.
  • **Metals:** These elements are typically shiny, conductive, and malleable. For example, Calcium (\(Z=20\), symbol Ca) and Potassium (\(Z=19\), symbol K) are classified as metals.
  • **Metalloids:** These elements have properties of both metals and nonmetals. Arsenic (\(Z=33\), symbol As) is an example of a metalloid.
  • **Nonmetals:** These elements are usually poor conductors of heat and electricity and are not malleable. Bromine (\(Z=35\), symbol Br) is an example of a nonmetal.
Each classification gives insight into the likely properties and behaviors of the elements. For instance, while metals generally conduct electricity, nonmetals tend to be insulating. Recognizing these classifications helps in understanding how elements can be expected to interact in chemical reactions.
periodic table groups
The periodic table organizes elements into columns called groups based on similar properties. These groups are numbered from 1 to 18. Elements within the same group usually have similar chemical behaviors because they have the same number of valence electrons.
  • **Group 1 (Alkali Metals):** Potassium (\(Z=19\), symbol K) is in this group. Alkali metals are highly reactive, especially with water.
  • **Group 2 (Alkaline Earth Metals):** Calcium (\(Z=20\), symbol Ca) belongs here. These metals are less reactive than alkali metals but still quite reactive.
  • **Group 13:** Aluminum (\(Z=13\), symbol Al) is in this group. These elements often form trivalent compounds.
  • **Group 15:** Arsenic (\(Z=33\), symbol As) is part of this group. Also known as the nitrogen group, elements here show varying oxidation states.
  • **Group 17 (Halogens):** Bromine (\(Z=35\), symbol Br) falls under this group. Halogens are highly reactive nonmetals, especially with alkali or alkaline earth metals.
Understanding which group an element belongs to helps in predicting its reactivity and the types of compounds it forms.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Describe the formation of solid magnesium chloride \(\left(\mathrm{MgCl}_{2}\right)\) from large numbers of magnesium and chlorine atoms.

Classify each of the following as a compound, a homogeneous mixture, or a heterogeneous mixture: (a) orange juice; (b) vegetable soup; (c) cement; (d) calcium sulfate; (e) tea.

Zinc sulfide (ZnS) occurs in the zincblende crystal structure. (a) If \(2.54 \mathrm{~g}\) of \(\mathrm{ZnS}\) contains \(1.70 \mathrm{~g}\) of \(\mathrm{Zn},\) what is the mass ratio of zinc to zinc sulfide? (b) How many kilograms of Zn are in \(3.82 \mathrm{~kg}\) of \(\mathrm{ZnS}\) ?

Give the name and formula for the acid derived from each of the following anions: (a) hydrogen carbonate (b) \(\mathrm{IO}_{4}^{-}\) (c) cyanide (d) \(\mathrm{HS}^{-}\)

Give the name and formula of the compound formed from each pair of elements: (a) cesium and bromine; (b) sulfur and barium; (c) calcium and fluorine.
See all solutions

Recommended explanations on Chemistry Textbooks

Nuclear Chemistry

Read Explanation

Kinetics

Read Explanation

Chemical Analysis

Read Explanation

Chemistry Branches

Read Explanation

Organic Chemistry

Read Explanation

Inorganic Chemistry

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free