/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 79 In each of the following groups,... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 10: Problem 79

In each of the following groups, which element is least reactive? a. Group 1 b. Group 7 c. Group 2 d. Group 6

Short Answer

Expert verified
The least reactive elements in each group are: a. Hydrogen (H) in Group 1, b. Astatine (At) in Group 7, c. Beryllium (Be) in Group 2, and d. Polonium (Po) in Group 6.

Step by step solution

01

Examine Group 1

Group 1 elements are known as alkali metals. As we move down in Group 1, the atomic size increases, and the ionization energy decreases, making it easier for electrons to be lost. The least reactive element is the one with the highest ionization energy, which is the element at the top of the group.
02

Examine Group 7

Group 7 elements are known as halogens. The reactivity of halogens generally decreases moving down Group 7, as atomic size increases and electronegativity decreases. The least reactive element is the one further down the group, with the lowest electronegativity.
03

Examine Group 2

Group 2 elements are known as alkaline earth metals. Similar to Group 1, the reactivity of these elements generally increases moving down Group 2. The least reactive element is the one with the highest ionization energy, which is the element at the top of the group.
04

Examine Group 6

Group 6 elements are known as chalcogens. For nonmetals like those in Group 6, generally reactivity decreases moving down the group, as atomic size increases and electronegativity decreases. The least reactive element is the one further down the group, with the lowest electronegativity.
05

Identify the least reactive elements

a. In Group 1, the least reactive element is hydrogen (H) due to its highest ionization energy. b. In Group 7, the least reactive element is astatine (At) due to its lowest electronegativity. c. In Group 2, the least reactive element is beryllium (Be) due to its highest ionization energy. d. In Group 6, the least reactive element is polonium (Po) due to its lowest electronegativity.

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.

Over 30 million students worldwide already upgrade their learning with 91影视!

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

According to Bohr's theory, what happens to the electron in an atom when the atom absorbs radiation or when it emits radiation?

In the modern theory of the atom, a(n) _______ resents a region of space in which there is a high probability of finding an electron.

According to Bohr, the electron in the hydrogen atom moved around the nucleus in circular paths called ______.

When an atom in an excited state returns to its ground state, what happens to the excess energy of the atom?

Using the symbol of the previous noble gas to indicate the core electrons, write the electron configuration for each of the following elements. a. zirconium, \(Z=40\) b. vanadium, \(Z=23\) c. bromine, \(Z=35\) d. silicon, \(Z=14\)
See all solutions

Recommended explanations on Chemistry Textbooks

Kinetics

Read Explanation

Making Measurements

Read Explanation

Chemical Reactions

Read Explanation

Organic Chemistry

Read Explanation

Physical Chemistry

Read Explanation

Nuclear 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.