Warning: foreach() argument must be of type array|object, bool given in /var/www/html/web/app/themes/studypress-core-theme/template-parts/header/mobile-offcanvas.php on line 20

Use the periodic table to give the name and symbol for each of the following elements:

(a) the halogen in the same period as the alkali metal with 11 protons

(b) the alkaline earth metal in the same period with the neutral noble gas with 18 electrons

(c) the noble gas in the same row as an isotope with 30 neutrons and 25 protons

(d) the noble gas in the same period as gold

Short Answer

Expert verified

(a) Name – Chlorine, Symbol – Cl

(b) Name – Magnesium, Symbol – Mg and Name – Argon, Symbol – Ar

(c) Name – Krypton, Symbol - Kr

(d) Name – Radon, Symbol - Rn

Step by step solution

01

Identify the halogen element

Number of protons = atomic number. The alkali metal with 11 protons is sodium. It is placed in the 3rd period of the periodic table. If you notice the periodic table, you will find that the Halogen element present in the 3rd period is chlorine. Thus, the element is chlorine, whose symbol is Cl.

02

Identify alkaline earth metal and noble gas element

In the periodic table, Group – 2 elements are called alkaline earth metals, and Group 18 elements are called Noble gases. So, in the 3rd period, the Group 2 element is Magnesium, and the Group 18 element is Argon. Thus, the Alkaline Earth metal is Magnesium (symbol- Mg), and the Noble gas element is Argon (symbol – Ar).

03

Identify the noble gas

The number of protonscorresponds to the atomicnumber. So, 25 protons correspond to the element Manganese (Mn), with 30 neutrons. It is in the 4th period in the periodic table, and the noble gas in the same row is Krypton.Thus, the element is Krypton (symbol – Kr)

04

Identify the noble gas

The atomic number of Gold (Au) is 79. It is placed in the 6th period and 11th rowin the periodictable.Thus, the noble gas element is Radon (Symbol – Rn).

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 Vaia!

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

Give the number of protons, electrons, and neutrons in neutral atoms of each of the following isotopes:\(\begin{aligned}{}\left( a \right){\rm{ }}{}_3^7Li{\rm{ }}\\\left( b \right){\rm{ }}{}_{52}^{125}Te{\rm{ }}\\\left( c \right){\rm{ }}{}_{47}^{109}Ag{\rm{ }}\\\left( d \right){\rm{ }}{}_7^{15}N{\rm{ }}\\\left( e \right){\rm{ }}{}_{15}^{31}P\end{aligned}\)

Question: Write the formulas of the following compounds:

(a) rubidium bromide

(b) magnesium selenide

(c) sodium oxide

(d) calcium chloride

(e) hydrogen fluoride

(f) gallium phosphide

(g) aluminum bromide

(h) ammonium sulfate

Question : Name the following compounds:

  1. NaF
  2. Rb2O
  3. BCl3
  4. H2Se
  5. P4O6
  6. ICl3

Using the periodic table, predict whether the following chlorides are ionic or covalent:\(SiC{l_4},PC{l_3},CaC{l_2},CsCl,CuC{l_2}{\rm{ and }}CrC{l_3}.\)

Open theBuild an Atom simulation (http://openstaxcollege.org/l/16PhetAtomBld)and click on the

Atom icon.

a. Pick any one of the first 10 elements that you would like to build and state its symbol.

b. Drag protons, neutrons, and electrons onto the atom template to make an atom of your element.

State the numbers of protons, neutrons, and electrons in your atom, as well as the net charge and mass number.

c. Click on “Net Charge” and “Mass Number,” check your answers to (b), and correct, if needed.

d. Predict whether your atom will be stable or unstable. State your reasoning.

e. Check the “Stable/Unstable” box. Was your answer to (d) correct? If not, first predict what you can do to make a Stable atom of your element, and then do it and see if it works. Explain your reasoning.

See all solutions

Recommended explanations on Chemistry Textbooks

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