Two Isotopes of an Element Differ in Their

question 98

Multiple Choice

Two isotopes of an element differ in their

• A)symbol.
• B)atomic number.
• C)atomic mass.
• D)number of protons.
• E)number of electrons.

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Definitions:

1861

The year that marked the beginning of the American Civil War, following the secession of several southern states from the Union.

Lincoln

The 16th President of the United States, Abraham Lincoln, known for leading the country during the Civil War and abolishing slavery.

1860 Election

The presidential election in which Republican Abraham Lincoln defeated three other candidates, leading to the secession of Southern states.

Presidential Candidate

A person who is nominated or runs for election to the office of the President.