Fall Semester Review

Front

What is the definition of accuracy in data?

Back

Accuracy refers to how close a measured value is to the actual (true) value.

Front

What is the definition of precision in data?

Back

Precision refers to how close the measured values are to each other, regardless of whether they are close to the true value.

Front

What is an orbital diagram?

Back

An orbital diagram is a visual representation of the electron configuration of an atom, showing the distribution of electrons in atomic orbitals.

Front

What is the correct electron configuration for a Bromine ion (Br-1)?

Back

The correct electron configuration for a Bromine ion is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 4p¹.

Front

How do you determine the number of neutrons in an atom?

Back

To find the number of neutrons, subtract the atomic number (number of protons) from the mass number (total number of protons and neutrons).

Front

What type of bond is formed when atoms share electrons?

Back

A covalent bond is formed when atoms share electrons.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus of an atom.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the significance of the 2p orbital in electron configuration?

Back

The 2p orbital can hold a maximum of 6 electrons and is the second energy level's p subshell.

Front

What does it mean for a measurement to be both accurate and precise?

Back

A measurement is both accurate and precise when it is close to the true value and the measurements are consistently close to each other.