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Chapter 2: Problem 41

For each of the following elements, write its chemical symbol, locate it in the periodic table, give its atomic number, and indicate whether it is a metal, metalloid, or nonmetal: (a) radon, (b) tellurium, (c) cadmium, (d) chromium, (e) barium, (f) selenium, \((\mathbf{g})\) sulphur.

Short Answer

Expert verified
(a) Radon: Rn, atomic number 86, nonmetal. (b) Tellurium: Te, atomic number 52, metalloid. (c) Cadmium: Cd, atomic number 48, metal. (d) Chromium: Cr, atomic number 24, metal. (e) Barium: Ba, atomic number 56, metal. (f) Selenium: Se, atomic number 34, nonmetal. (g) Sulphur: S, atomic number 16, nonmetal.

Step by step solution

01

(a) Radon

Radon is a noble gas found in the periodic table with the chemical symbol Rn. Look for Radon in the periodic table, find its atomic number and determine if it is a metal, metalloid, or nonmetal.
02

Radon Information

Chemical Symbol: Rn Atomic Number: 86 Element Type: Nonmetal
03

(b) Tellurium

Tellurium is a chemical element found in the periodic table with the chemical symbol Te. Look for Tellurium in the periodic table, find its atomic number and determine if it is a metal, metalloid, or nonmetal.
04

Tellurium Information

Chemical Symbol: Te Atomic Number: 52 Element Type: Metalloid
05

(c) Cadmium

Cadmium is a chemical element found in the periodic table with the chemical symbol Cd. Look for Cadmium in the periodic table, find its atomic number and determine if it is a metal, metalloid, or nonmetal.
06

Cadmium Information

Chemical Symbol: Cd Atomic Number: 48 Element Type: Metal
07

(d) Chromium

Chromium is a chemical element found in the periodic table with the chemical symbol Cr. Look for Chromium in the periodic table, find its atomic number and determine if it is a metal, metalloid, or nonmetal.
08

Chromium Information

Chemical Symbol: Cr Atomic Number: 24 Element Type: Metal
09

(e) Barium

Barium is a chemical element found in the periodic table with the chemical symbol Ba. Look for Barium in the periodic table, find its atomic number and determine if it is a metal, metalloid, or nonmetal.
10

Barium Information

Chemical Symbol: Ba Atomic Number: 56 Element Type: Metal
11

(f) Selenium

Selenium is a chemical element found in the periodic table with the chemical symbol Se. Look for Selenium in the periodic table, find its atomic number and determine if it is a metal, metalloid, or nonmetal.
12

Selenium Information

Chemical Symbol: Se Atomic Number: 34 Element Type: Nonmetal
13

(g) Sulphur

Sulphur is a chemical element found in the periodic table with the chemical symbol S. Look for Sulphur in the periodic table, find its atomic number and determine if it is a metal, metalloid, or nonmetal.
14

Sulphur Information

Chemical Symbol: S Atomic Number: 16 Element Type: Nonmetal

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Most popular questions from this chapter

The element argon has three naturally occurring isotopes, with \(18,20,\) and 22 neutrons in the nucleus, respectively. (a) Write the full chemical symbols for these three isotopes. (b) Describe the similarities and differences between the three kinds of atoms of argon.

Bromine has two naturally occurring isotopes, bromine- 79 (atomic mass \(=78.9183 \mathrm{u} ; \quad\) abundance \(=50.69 \%)\) a \(\mathrm{nd}\) bromine-81 \(\quad\) (atomic mass \(=80.9163 \mathrm{u} ;\) abundance \(=\) $49.31 \%) .$ Calculate the atomic weight of bromine.

The element chromium (Cr) consists of four naturally occurring isotopes with atomic masses 49.9460,51.9405,52.9407 , and \(53.9389 \mathrm{u}\). The relative abundances of these four isotopes are \(4.3,83.8,9.5,\) and \(2.4 \%\), respectively. From these data, calculate the atomic weight of chromium.

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