Basic Atomic Structure
This subatomic particle has a negative charge.
What is an electron?
An atom that gains or loses electrons becomes this.
What is an ion?
In a Bohr Modle, electrons are shown occupying these around the nucleus?
What are engery levels or shells?
This principle states that electrons fill the lowest-energy orbitals available before moving to higher-energy orbits.
What is the Aufbau Principle?
This is the maximum number of electrons that can occupy an s subshell.
What is 2?
These two subatomic particles are found in the nucleus of an atom.
What are protons and neutrons?
What are isotopes?
This is the maximum number of electrons in the first energy level.
What is 2?
This principle states that an orbital can hold a maxium of two electrons, and they must have opposite spins.
What is The Pauli Exclusion Principle?
This is the maximum number of electrons that can occupy a p subshell
What is 6?
This number on the periodic table tells hou how many protons an atom has.
What is the atomic number?
When an atom loses two electrons, it develops this electrical charge?
What is +2?
A neutral oxygen atom has 8 electrons. State how many electrons are in its first and second energy levels.
What is 2 and 6.
This rule states that electrons occupy orbitals of equal energy individually before pairing up.
What is Hunds Rule?
Identify the element with the electron configuration 1s² 2s² 2p⁶.
What is neon?
An atom has 15 protons, 16 neutrons, and 15 electrons. This is its mass number.
What is 31?
Chlorine-37 has an atomic number of 17. State its number of protons, neutrons, and electrons if its neutral.
What are 17 protons, 20 neutrons, and 17 electrons?
A neutral atom has its electrons arranged 2-8-3. Identify the element.
What is aluminium?
A student draws the orbital diagram for nitrogen's 2p electrons as [↑↓] [↑] [ ]. Identify the rule being violated
What is Hunds Rule?
Write the full electron configuration for a neutral magnesium atom.
What is 1s² 2s² 2p⁶ 3s²?
A neutral atom has 34 electron and 45 neutrons. Identify the element and its mass number.
What are selenium and 79
An ion has 16 protons, 18 electrons, 18 neutrons. Identify the element, its charge, and its mass number.
What are sulfur, -2, and 34?
A neutral calcium atom has 20 eletrons. Give the electron arrangmenet across its four energy levels.
What is 2-8-8-2?
A student writes the electron configuration for carbon as 1s² 2s² 2p² but draws both 2p electrons in the same orbital with the same spin [↑↑] [ ] [ ]. Identify the rule being violated and explain why.
What is the Pauli Exclusion Principle, because two electrons in the same orbital must have opposite spins?
Write the full electron configuration for a neutral calcium atom and identify the number of occupied principal energy levels.
What are 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² and 4 energy levels?