Adaptive Practice
Periodic Table
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Question 1 of 10
⏱ 0:30
Easy
Which of the following elements is a halogen?
Easy
The atomic number of an element is 17. To which period and group does it belong?
Medium
Which of the following elements has the highest electronegativity?
Medium
What is the general electronic configuration of the elements in Group 2?
Medium
Which of the following statements correctly describes the trend in atomic size across a period?
Medium
Identify the element with electronic configuration [Ne] 3s² 3p³.
Hard
Which of the following elements is a transition metal?
Hard
The atomic radius of elements generally increases down a group due to:
Hard
Which of the following elements has the highest first ionization energy?
Hard
The formula to calculate effective nuclear charge (Z_eff) is: