Chemistry Basics: Periodic Table, Elements, and Properties

MightyForest avatar

Start Quiz

Study Flashcards

5 Questions

What is the primary basis of the arrangement of elements in the periodic table, and how do the periodic properties of atomic radius, ionic radius, ionization energy, electron affinity, and electronegativity change across a period and down a group?

The primary basis of the arrangement of elements in the periodic table is the atomic number. Across a period, atomic radius decreases, ionic radius decreases, ionization energy increases, electron affinity increases, and electronegativity increases. Down a group, atomic radius increases, ionic radius increases, ionization energy decreases, electron affinity decreases, and electronegativity decreases.

What are the characteristics of alloys that make them useful for specific applications, and how do they contribute to pollution problems?

Alloys are mixtures of metals that have improved properties such as strength, corrosion resistance, and ductility. They are useful for specific applications due to their tailored properties. However, the extraction and processing of metals for alloy production can lead to pollution problems, such as environmental degradation and health risks.

What are the differences between addition polymers and condensation polymers, and how do their properties and uses impact the environment?

Addition polymers, such as polythene and polypropene, are formed through the addition of monomers, whereas condensation polymers, such as polyamides and polyesters, are formed through the condensation reaction between monomers. Addition polymers are typically more flexible and resistant to chemicals, while condensation polymers are more resistant to heat and abrasion. The improper disposal of these plastics contributes to pollution problems, such as plastic waste and microplastics in the environment.

What are the tests used to identify the gases CO2, H2, O2, Cl2, NH3, and SO2, and how do these gases contribute to environmental pollution?

The tests used to identify these gases include limewater for CO2, burning splint for H2, glowing splint for O2, litmus paper for Cl2, wet red litmus paper for NH3, and acidified KMnO4 for SO2. These gases contribute to environmental pollution through their release into the atmosphere, contributing to climate change, acid rain, and air pollution.

What are the properties of isotopes that make them useful for specific applications, and how do they differ from their parent elements?

Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons. They have the same chemical properties as their parent elements but differ in their physical properties, such as mass and radioactive properties. This makes them useful for applications such as nuclear medicine, radiocarbon dating, and nuclear power.

Test your knowledge of the periodic table, elements, and their properties. Learn about groups, periods, and blocks, and how to research definitions of atomic radius, ionic radius, and more. Also, explore alloys, their formation, and properties.

Make Your Own Quizzes and Flashcards

Convert your notes into interactive study material.

Get started for free

More Quizzes Like This

Chemistry: Periodic Table and Elements
5 questions
Periodic Table and Elements
30 questions
Use Quizgecko on...