Electrons in Atoms

The word "valence" comes from the Latin word _________?

• Valentine

• Valente

• Valentia

• Vale

What term describes the arrangement of electrons around the nucleus in an atom?

• Atomic Mass

• Atomic Number

• Electron Configuration

• Valence Shell

Who was the British physicist who discovered electron to account his observations in which he described the atom as a large, positively charged sphere in which negatively charged electrons are embedded?

• John Dalton

• Niel Bohr

• J.J Thomson

• James Chadwick

What is the maximum number of electrons in the third energy level?

• 2

• 3

• 4

• 8

It is located in the outermost energy level of an atom known as _____?

• Core electrons

• Valence electrons

• Ionized electrons

• Isotopic electrons

What describes the orbital's orientation in space?

• Magnetic quantum number

• Spin quantum number

• Principal quantum number

• Angular momentum quantum number

How many valence electrons are present in a Carbon atom?

• 5 electrons

• 8 electrons

• 6 electrons

• 4 electrons

Which term describes the shape of the orbital and also referred to as "subshells"?

• Principal quantum number

• Magnetic quantum number

• Spin quantum number

• Angular momentum quantum number

   What is electron configuration?

• It describes how electrons are distributed in an element's atomic orbitals.

• It shows the way electrons are shared or transferred between atoms.

• It explains how electrons are arranged around the nucleus in energy levels only.

•   It represents how protons and neutrons are organized in an atom's orbitals.

How does the Aufbau principle help us understand electron configurations?

• It states that electrons are always paired in orbitals.

• It explains that electrons pair up only after each orbital has one electron.

• It shows that electrons fill the lowest energy orbitals first.

• It organizes electrons based on atomic mass.