Question
Which of the following periods has the least number of elements? a Second period b First period c Third period d Fourth period
Answer
4.7
(303 Votes)
Zosia
Elite · Tutor for 8 years
Answer
### b. First period
Explanation
## Step1: Identify the elements in each period### The periodic table is divided into periods, each containing a specific number of elements. The first period has 2 elements, the second period has 8 elements, the third period has 8 elements, and the fourth period has 18 elements.## Step2: Compare the number of elements in each period### By comparing the number of elements in each period: First period (2), Second period (8), Third period (8), Fourth period (18), we can see that the first period has the least number of elements.