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Chapter 2: 40E (page 46)

For each of the following sets of elements, label each as either noble gases, halogens, alkalimetals, alkaline earth metals, or transition metals.
a. Ti, Fe, Ag
b. Mg, Sr, Ba
c. LI, K, Rb
d. Ne, Kr, Xe
e. F, Br, I

Short Answer

Expert verified

The given set of elements are labelled.

Step by step solution

01

Classification of elements in the periodic table

The periodic table elements can be classified according to their physical properties as halogen, noble gas, alkaline earth metals, alkaline metals or transition metals.

02

Position of elements in the periodic table

The position of above mentioned elements can be in group 1 of alkali metals, Group 2 of alkaline earth metals, Group 18 of noble gases, group 17 of halogens. The positions of transition elements are in group 3 to 12 and periods 4 to 17.

03

Three elements belongs to transition elements

The elements of Fe and Ti are present in fourth period with atomic number of 26 and 22. The atomic number of Ag is 42 which is present in fifth period. These three elements for the transition elements.

04

Alkaline earth elements in the periodic table

The presence of alkaline earth elements like Ba, Sr and Mg are present in second group of periodic table.

05

Alkali metals in the periodic table

The presence of alkali metals like Rb, K and Li in the group 2 of periodic table.

06

Noble gases in the periodic table

The noble gases present in periodic table of group 18 are Xe, Kr and Ne.

07

Halogens in the periodic table

The Halogens are present in group of 17 and elements are I, Br and F.

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Most popular questions from this chapter

Each of the following compounds is incorrectly named. What is wrong with each name, and what is the correct name for each compound?
a.FeCl3, iron chloride
b.NO2, nitrogen(IV) oxide
c.localid="1655288627376" CaO, calcium(II) monoxide
d. Al2S3, dialuminumtrisulfide

e.MgC2H3O22, manganese diacetate
f.localid="1655291289052" FePO4, iron(II) phosphide
g.localid="1655291302872" P2S5, phosphorus sulfide
h.localid="1655291314272" Na2O2, sodium oxide
i.localid="1655291337884" role="math" HNO3, nitrate acid
j. localid="1655291353871" H2S, sulfuric acid

You have gone back in time and are working with Dalton on a table of relative masses. Following are his data:

0.602g gas A reacts with 0.295g gasB

0.172 g gas B reacts with 0.401 g gasC

0.320 g gas A reacts with 0.374g gas C

a. Assuming simplest formulas (AB,BC, and AC), construct a table of relative masses for Dalton.

b. Knowing some history of chemistry, you tell Dalton that if he determines the volumes of the gases reacted at constant temperature and pressure, he need not assume simplest formulas. You collect the following data:

6volumesgasA+1volumegasB→4volumesproduct

1volumesgasB+4volumegasC→4volumesproduct

3volumesgasA+3volumesgasC→6volumesproduct


Write the simplest balanced equations, and find the actual relative masses of the elements.

Explaining your reasoning.

Q.5.Heat is applied to an ice cube in a closed container until only steam is present. Draw are presentation of this process, assuming you can see it at an extremely high level of magnification. What happens to the size of the molecules? What happens to the total mass of the sample?

List the noble gas elements. Which of the noble gases has only radioactive isotopes? (Thissituation is indicated on most periodic tables by parentheses around the mass of the element. See inside front cover.)
b. Which lanthanide element and which transition element have only radioactive isotopes?

Elements in the same family often form oxyanions of the same general formula. The anions are named in a similar fashion. What are the names of the oxyanions of selenium and tellurium: SeO42-,SeO32-,TeO42-,TeO32-.
See all solutions

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