This Element Is More Reactive Than Lithium and Magnesium but Less

question 163

Multiple Choice

This element is more reactive than lithium and magnesium but less reactive than potassium. This element is ________.

• A)Na
• B)Rb
• C)Ca
• D)Be
• E)Fr

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Definitions:

Developing Countries

Nations with a lower living standard, undeveloped industrial base, and lower Human Development Index relative to other countries.

Life Expectancy

The average number of years a person is expected to live, based on statistical averages.

Crude Death Rate

A measure of the number of deaths in a given population, scaled to the size of that population per unit of time, typically expressed as deaths per 1,000 individuals per year.

Birth Control

Methods or devices used to prevent pregnancy or manage fertility.