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What is the period number of the element with atomic number 20?
What is the period number of the element with atomic number 20?
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What is the period number of the element with atomic number 20?
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The element with atomic number 20 is Calcium, which is in period 4.
Questions & Step-by-step Solutions
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Q
Q: What is the period number of the element with atomic number 20?
Solution:
The element with atomic number 20 is Calcium, which is in period 4.
Steps: 5
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Step 1: Identify the atomic number given in the question, which is 20.
Step 2: Look at the periodic table of elements to find the element with atomic number 20.
Step 3: Find that the element with atomic number 20 is Calcium (Ca).
Step 4: Check the position of Calcium in the periodic table to determine its period.
Step 5: Note that Calcium is located in period 4 of the periodic table.
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