Semester 1 test reg chemistry 2024-2025

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

Which element is the most electronegative?

Back

Fluorine (F) is the most electronegative element.

Front

How does electronegativity change across a period in the periodic table?

Back

Electronegativity increases as you move from left to right across a period.

Front

How does electronegativity change down a group in the periodic table?

Back

Electronegativity generally decreases as you move down a group.

Front

What are the two subatomic particles that make up the nucleus of an atom?

Back

Protons and Neutrons.

Front

What is the formula for tetraphosphorous hexaoxide?

Back

P4O6.

Front

How many significant figures are in the number 25,001.0?

Back

There are six significant figures.

Front

What is a safe laboratory practice regarding hair?

Back

Tying hair back is a safe laboratory practice.

Front

What does it mean to 'waft' in a laboratory setting?

Back

Wafting is a technique used to safely smell chemicals by gently moving air towards your nose.

Front

What is the significance of significant figures in measurements?

Back

Significant figures indicate the precision of a measurement.