Activity 7: Classification of Elements Dividing elements into groups is not the only way to classify elements based on their chemical properties. Three classes of elements are metals, nonmetals, and metalloids. Across a period, the properties of elements become less metallic and more nonmetallic. Most elements of the periodic table are metals, roughly about 80%. The next category of elements, nonmetals, is located in the upper-right corner of the periodic table, except hydrogen. There is a greater variation in physical properties among nonmetals than among metals. In the periodic table, you may notice a heavy stair-step line that separates the metals from the nonmetals. Most of the elements that border this line are metalloids. A metalleid gonerally has motalc and

Activity 7: Classification of Elements Dividing elements into groups is not the only way to classify elements based on their chemical properties. Three classes of elements are metals, nonmetals, and metalloids. Across a period, the properties of elements become less metallic and more nonmetallic. Most elements of the periodic table are metals, roughly about 80%. The next category of elements, nonmetals, is located in the upper-right corner of the periodic table, except hydrogen. There is a greater variation in physical properties among nonmetals than among metals. In the periodic table, you may notice a heavy stair-step line that separates the metals from the nonmetals. Most of the elements that border this line are metalloids. A metalleid gonerally has motalc and

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter1: The Nature Of Chemistry

Section1.13: The Periodic Table

Problem 1.9E

See similar textbooks

Related questions

Q: SWAN B.Leciure28-Introto Sk Doctors Vs Nurses: Wh eztomheducation.com A…

A: 6.93 mol of HCl reacts with 6.93 mol of KCN according to the chemical equation. The molar mass of…

Q: what is a chemical reason that a sample could have less than 100% purity? A) Impurity was an acid B)…

A: percent purity = mass of the pure sampletotal mass of the sample x 100Percentage purity should be…

Q: Lowest melting point Answer Bank

A: Lattice energy depends on distance between two ions ( cation and anion ) and also depends on charge…

Q: LEARNING TASK 4!

A: Given,

Q: I Review | Constants | MISSED THIS? Watch IWE 10.14; Read Section 10.10. You can click on the Review…

A: The balanced reaction taking place is given as, => CO (g) + 2 H2 (g) → CH3OH (g) Given: Volume of…

Q: INSTRUCTIONS: Encode your final answers on the answer sheet for quizzes. For illustration-type of…

A: #1: Lineweaver-Burk Plot is drawn from the reciprocal form of Michaelis-Menten equation which is…

Q: Enter your answer in the provided box. AS for the combustion of ethane (C,H) to carbon dioxide and…

A: combustion of ethane reaction 2C2H6g+7O2g→4CO2g+6H2Og

Q: Icted Sample A Šample B Sample C Sample D Observations Sample E Sample F white Crstal white Fazzy…

A: Here, we have to identify an ionic and molecular solubility based on properties like, state, color,…

Q: 4. Why does the local government prohibit people living in the barrios to launder nearby rivers and…

A: 4) The local government prohibited people living in the barrios to launder nearby rivers and lakes,…

Q: Here's a sentence stem for you to use: IF the students chew the bubble gum for 60 seconds, THEN the…

A: Reason The reason for this venture is to see which brand of bubblegum makes the greatest bubbles.…

Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains…

Q: Consider this metal complex: 3- F он OH Cr F OH OH Complex A Now decide whether each complex in the…

Question

Please help thanks

Activity 7: Classification of Elements
Dividing elements into groups is not the only way to classify elements based on their
chemical properties. Three classes of elements are metals, nonmetals, and
metalloids. Across a period, the properties of elements become less metallic and more
nonmetallic.
Most elements of the periodic table are metals, roughly about 80%. The next category
of elements, nonmetals, is located in the upper--right corner of the periodic table,
except hydrogen. There is a greater variation in physical properties among nonmetals
than among metals.
In the periodic table, you may notice a heavy stair-step line that separates the
metals from the nonmetals. Most of the elements that border this line are metalloids. A
metalloid generally has properties that are similar to those of metals and nonmetals.
Under some conditions, a metalloid may behave like a metal. Under other conditions, it
may behave like a nonmetal. For example, like most nonmetals, pure silicon is a poor
conductor of electric current. However, if a small amount of boron is mixed with silicon,
the mixture is a good conductor of electric current. Silicon can be cut into wafers and
used to make computer chips.
In the table below, describe the different classifications of elements. Be sure to include
physical and chemical properties, especially the state of matter.
Metals vs. Metalloids vs. Nonmetals
Metals
Metalloids
Nonmetals

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

2.84 Early attempts to arrange the elements often focused on atomic weight. Mendeleev considered a number of properties in addition to atomic weight, so he realized that some elements seemed out of place when ordered by atomic weight. Using the modern periodic table, identify elements for which Mendeleev must have had to switch the order in order to get the correct sequence of elements.
How do binary compounds with hydrogen illustrate the concept of periodicity?
Given that the periodic table is an organizational scheme for the elements, what might be some other logical ways in which to group the elements that would provide meaningful chemical information in a periodic table of your own devising?
2-44 Which period(s) in the Periodic Table contain(s) more nonmetals than metals? Which contain(s) more metals than nonmetals?
2.42 What is a period in the periodic table? From what does it derive its name?
The symbols for most elements are based on the first few letters of the respective element’s common English name. In some cases, however, the symbol seems to have nothing to do with the element’s common name. Give three examples of elements whose symbols are not directly derived from the element’s common English name.
Mass spectrometric analysis showed that there are four isotopes of an unknown element having the following masses and abundances: Three elements in the periodic table that have atomic weights near these values are lanthanum (La), atomic number 57, atomic weight 138.9055; cerium (Ce), atomic number 58, atomic weight 140.115; and praseodymium (Pr), atomic number 59, atomic weight 140.9076. Using the data above, calculate the atomic weight, and identify the element if possible.
2.96 Use the web to look up the density of different forms of steel, such as stainless steel or magnetic steel, and discuss whether or not the differences in the densities follow what might he predicted by looking at the periodic properties of elements.
A cylindrical piece of pure copper (d=8.92g/cm2) has diameter 1.15 cm and height 4.00 inches. How many atoms are in that cylinder? (Note: the volume of a right circular cylinder of radius r and height h is V=r2 h .)
What defines an element? How many naturally occurring elements exist?
Answer the following
The advantage of using Helium in decorative and weather balloons over that of Hydrogen is it is cheap it is abundant. it has low density. it is not flammable. Among the different scientists who proposed the arrangement of elements in the periodic table, Dmitri Mendeleev was given the credit for the modern periodic table because of * his prediction of properties of undiscovered elements by leaving gasp in the perio table. O his arrangement according to the properties of elements. his arrangement according to the element's atomic mass his arrangement according to the element's atomic number. Which of the following properties of elements increasels from left to right? (a) electronegativity. (b) electron affinity. (c) ionization energy. (d) atomic radius. a and b b and c c and d