Which of the Following Is Correct for the Element with Atomic

question 12

Multiple Choice

Which of the following is correct for the element with atomic number 20?
Symbol Atomic mass (u) Period Group

• A)Ca 40.08 2A/2 4
• B)Ca 40.08 4 2A/2
• C)Ca 20 2A/2 4
• D)Ca 20 4 2A/2
• E)Ne 20 2 8A/18

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