What Is the Symbol of the Element in Period 4

question 34

Multiple Choice

What is the symbol of the element in Period 4 and Group 2?

• A)Be
• B)Mg
• C)Ca
• D)C
• E)Si

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Definitions:

Physical Activity

Physical activity encompasses any bodily movement produced by skeletal muscles that requires energy expenditure, including activities undertaken while working, playing, carrying out household chores, traveling, and engaging in recreational pursuits.

Mortality Rate

A measure of the frequency of occurrence of death in a defined population during a specified interval.

Late Adulthood

A life stage experienced by individuals typically aged 65 and older, characterized by retirement, lifestyle changes, and increased focus on social and personal fulfillment.

Selective Optimization

A strategy that involves focusing on and maximizing one's strengths while minimizing weaknesses through selection and optimization of resources.