For Each of the Elements Below,there Are Only Two Naturally

question 62

Multiple Choice

For each of the elements below,there are only two naturally occurring isotopes.Using the atomic masses on the periodic table,identify the pair in which the heavier isotope is the more abundant one.

• A)"⁶³Cu and ⁶⁵Cu"
• B)"⁸⁵Rb and ⁸⁷Rb"
• C)"¹⁰B and ¹¹B"
• D)"⁷⁹Br and ⁸¹Br"
• E)"¹⁴N and ¹⁵N"

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Definitions:

Chloroplast

An organelle found in plant cells and eukaryotic algae that conducts photosynthesis by capturing light energy to produce carbohydrates from carbon dioxide and water.

Internal Structure

The arrangement or organization of parts within an organism or object that contributes to its form and function.

Cytochrome Complex

A group of proteins found within the mitochondrial and chloroplast membranes, playing a key role in electron transport and energy generation.

Thylakoid Membrane

A membrane-bound compartment inside chloroplasts and cyanobacteria, where the light-dependent reactions of photosynthesis occur.