Identify the atomic numbers for each element.
This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
Step 1: Identify the atomic numbers for each element.
• W: Atomic number 2 (Helium)
• X: Atomic number 6 (Carbon)
• Y: Atomic number 16 (Sulfur)
• Z: Atomic number 20 (Calcium)
Step 2: Determine the type of element (metal, non-metal, or noble gas) based on its atomic number and position in the periodic table.
• W (Helium, atomic number 2): This is a noble gas, which is a type of non-metal.
• X (Carbon, atomic number 6): This is a non-metal.
• Y (Sulfur, atomic number 16): This is a non-metal.
• Z (Calcium, atomic number 20): This is an alkaline earth metal.
Step 3: Select the element that is a metal.
Based on the analysis, element Z (Calcium) is a metal.
The correct option is B.
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