Answered: A certain element has a melting point…

A certain element has a melting point over 700 °C and a density less than 2.00 g/cm*. Give one possible identity for this element. Enter the symbol for the element.

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter8: Electrochemistry And Ionic Solutions

Section: Chapter Questions

Problem 8.81E: a The salt NaNO3 can be thought of as NaCl+KNO3KCl. Demonstrate that 0 values show this type of...

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Concept explainers

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.

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16 of 17
I Review | 0Constants Periodic Table
nat
The physical and chemical properties at elements often show distinct trends within the periodic table Melting point and density are just two examples Familiarity with
these trends can help you to identify an unknown element based on its physical and cheImical properties.
v Part A
A certain element has a melting point over 700 °C and a density less than 2.00 g/cm. Give one possible identity for this elament.
Enter the symbol for the element.
> View Avallable Hint(s)
Submit
Part B
Annther element is silvery-white with a shiny luster, is very brittle, and forms ions wilh a -2 charge Give one possible identity of this element

E MasteringChemistry: Post Lecture x
P Course Home
A session.masteringchemistry.com/myct/itemView?assignme
0 Turnitin
A ALEKS -- Assessme.
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<Post Lecture Homework Chapter 08
Properties of Elements
The table below gives some properties of selected elements Note that
the values shown for groups 10 and 16 are fairly representative of the
d and p blocks, respectively
The
these
Melting point Density
Element
(°C)
(g/cm)
ithium
181
0.53
sodium
98
0 97
Group 1
(1A)
potassium
63
0.86
rubidium
39
1.53
cesium
28
1.88
beryllium
1287
1.85
magnesium
650
1.74
Group 2
(2A)
calcium
842
1.55
strontium
777
2.63
barium
727
3.51
nickel
1453
8 90
Group 10 palladium
1552
12.0
platinum
1772
21.4
sulfur
115
196
Group 16
(6A)
selenium
221
4.82
tellurium
450
6.24
P Type here to search
1080
II

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