10 Questions
What is the equation, with state symbols, which represents the first ionization energy of arsenic?
$As(g) ightarrow As^+(g) + e^-$
What is the electronic configuration for an arsenic atom using the electrons-in-boxes notation?
1s22s22p63s23p63d104s23p4
Why is the first ionization energy of selenium lower than that of arsenic?
Selenium has more electron shielding than arsenic
Explain why the first ionization energy of krypton is higher than that of selenium.
Krypton has a smaller atomic radius than selenium
Which of the elements, arsenic to rubidium, is likely to have atoms with the smallest atomic radius?
Rubidium
Why is it necessary to study the chemical and physical properties of each element?
To understand the potential uses and dangers associated with each element
What was the main reason for scientists to classify the elements?
To facilitate the study of the chemistry of a large number of elements and their compounds
How many elements were known by 1865?
63
What is the significance of the increasing number of identified elements over time?
It reflects the continuous discovery of new elements
What is the relevance of studying the chemistry of all the elements and their compounds?
Understanding the diverse roles and impacts of each element in our lives
Test your knowledge of the classification of elements and periodicity in properties with this tutorial quiz. Explore questions about first ionization energies, state symbols, and hydride formulae for specific elements. Perfect for chemistry students and enthusiasts.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
