To identify whether the elements are metal, non-metal or metalloid from sodium to argon in the periodic table. Concept introduction: The third period of periodic table have elements as follows; sodium, magnesium, aluminium, silicon, phosphorous, sulfur, chlorine and argon. Metals are the elements which can form positive ions by loosing electrons. Non-metals are the elements which can form negative ions by gaining electrons. Metalloids are elements which shows both properties of metals and non-metals.
To identify whether the elements are metal, non-metal or metalloid from sodium to argon in the periodic table. Concept introduction: The third period of periodic table have elements as follows; sodium, magnesium, aluminium, silicon, phosphorous, sulfur, chlorine and argon. Metals are the elements which can form positive ions by loosing electrons. Non-metals are the elements which can form negative ions by gaining electrons. Metalloids are elements which shows both properties of metals and non-metals.
Solution Summary: The author explains that the third period of periodic table have elements as follows: sodium, magnesium, aluminium, silicon, phosphorous, sulfur, chlorine, and argon.
Definition Definition Substance that constitutes everything in the universe. Matter consists of atoms, which 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: solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chapter 21, Problem 89GQ
(a)
Interpretation Introduction
Interpretation: To identify whether the elements are metal, non-metal or metalloid from sodium to argon in the periodic table.
Concept introduction: The third period of periodic table have elements as follows; sodium, magnesium, aluminium, silicon, phosphorous, sulfur, chlorine and argon.
Metals are the elements which can form positive ions by loosing electrons. Non-metals are the elements which can form negative ions by gaining electrons. Metalloids are elements which shows both properties of metals and non-metals.
(b)
Interpretation Introduction
Interpretation: To identify the colour and appearance of third period elements through sodium to argon.
Concept introduction: The colour of element is a physical property of elements. Elements shows colour due to excitation of electrons by absorbing energy.
(c)
Interpretation Introduction
Interpretation: To identify the states (solid, liquid and gas) of elements through sodium to argon.
Concept introduction: There are three types of states of matter; solid, liquid and gas. Solids are the substance which have fixed shape and fixed volume. Liquids are the substances which have fixed volume but not fixed shape and gases are the substances which do not have fixed shape and volume.
Name these organic compounds:
structure
name
CH3
CH3
☐
F
F
CH3
☐
O
Explanation
Check
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Classify each of the following molecules as aromatic, antiaromatic, or nonaromatic.
ZI
NH
Explanation
Check
O aromatic
O antiaromatic
O nonaromatic
O aromatic
O antiaromatic
H
O nonaromatic
O aromatic
O antiaromatic
O nonaromatic
×
Part I.
Draw the stepwise reaction mechanism of each product (a, b, c, d, e, f)
HO
HO
OH
НОН,С
HO
OH
Sucrose
HO
CH₂OH
H
N
N
HO
-H
H
-OH
KMnO4, Heat
H
OH
CH₂OH
(d) Phenyl Osatriazole
OH
НОН,С
HO
HO
+
Glacial HOAC
HO-
HO
CH₂OH
OH
HO
Fructose
(a) Glucose
OH
(b)
H₂N
HN
(c)
CuSO4-5H2O,
ethanol
H
N
N
N
HO
·H
H
OH
H
OH
N
CH₂OH
OH
(f) Phenyl Osazone
H
(e) Carboxy phenyl osatriazole
Figure 2.1. Reaction Scheme for the Total Synthesis of Fine Chemicals