3rd Periodic Test Flashcards
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The horizontal arrangement in the periodic table.
Group
A positively charged subatomic particle.
Proton
Describes the spin of an electron in an orbital.
Spin Quantum Number
A particle smaller than an atom in which scientists used experimental observations to establish its existence.
Subatomic particle
This is equivalent to the number of protons (and electrons, if there is no charge).
Atomic Number
He realized you can arrange the elements using atomic number rather than atomic mass.
Henry Moseley
He improved the model of Ernest Rutherford
Niels Bohr
Specifies the energy of an electron and the size of the orbital and its distance away from the nucleus.
Principal Quantum Number
The particles vibrate in a fixed position.
Solid
He created the Telluric screw.
Alexander Béguyer de Chancourtois
Shape of the sublevel in each energy level.
Angular Quantum Number
Its molecules are slightly loose and is not easily compressed.
Liquid
He discovered neutrons.
James Chadwick
He called his atomic model the planetary model.
Niels Bohr
This rule states that no two electrons can have exactly the same amount of quantum numbers.
Pauli Exclusion
In which directions does atomic size increase?
It increases from right to left and up to down.
Liquid to solid…
Freezing
It has no definite shape and definite volume.
Liquid
First to discover electrons, he used his cathode ray tube experiment.
J.J Thomson
The person who discovered transuranic elements (actinide and lanthanide).
Glenn Seaborg
It has definite shape and definite volume.
Solid
What is the limit for the p orbital?
6 electrons
Its molecules can freely move and it is easily compressible.
Gas
He concluded that the atomic mass of the middle is the average atomic mass of the 2 elements.
Johann Dobereiner
An unstable atom that either gains or loses electrons.
Ion
It is a value that is used when describing the energy levels of electrons in atoms.
Quantum Numbers
Democritus’ ideas were not widely accepted as they were opposed by him.
Aristotle
It measures the size of the atoms.
Atomic Radius
The ability for elements to attract valence electrons.
Electronegativity
The vertical arrangement of the periodic table.
Series
Believed that matter was made of four natural elements.
Aristotle
What is formed when an ion gains electrons?
Anion
Used to show the distribution of electrons in each energy level located in various locations or orbitals.
Electron Configuration
Published his own arrangement based on increasing atomic mass similar to that of Mendeleev.
Lothar Meyer
The smallest particle of matter, the building block.
Atom
Solid to liquid…
Melting
What is the limit for the f orbital?
14 electrons
A negatively charged subatomic particle.
Electron
The representation of what an atom could look like based on observations and scientific evidence.
Atomic Model
What is formed when an ion loses electrons?
Cation
A subatomic particle with no charge.
Neutron
Solid to gas…
Sublimation
He used Heisenburg’s uncertainty principle to come up with the Electron Cloud Model.
Erwin Schrödinger
He was the person who revised the periodic law.
Henry Moseley
Proposed that elements can be arranged using their atomic mass. This may be observed at a regular interval every after the 7th element; this is called the law of octaves.
John Newlands
This rule states that the very orbital of the same energy must be singly occupied with one electron before any orbital is double occupied.
Hund’s rule
Describes the orientation of the orbital in the space around the nucleus.
Magnetic Quantum Number
What is the limit for the d orbital?
10 electrons
He then arranged the elements by increasing atomic mass, he was also the person who noticed a pattern when arranged horizontally.
Dmitri Mendeleev
In which direction does Ionization energy, electronegativity, and electron affinity increase?
It increases from left to right and bottom to top
The vertical arrangement of the periodic table.
Series
The particles move quickly in all directions.
Liquid
Whose ideas are these?
- Atoms are tiny invisible particles.
- Atoms of an element are all the same.
- The atoms of different elements vary from one another.
- Atoms form compounds when combined.
John Dalton
Amount of energy required to remove an electron from a neutral atom in its gaseous phase.
Ionization Energy
What is the limit for the s orbital?
2 electrons
Its molecules are tightly packed an hard to compress.
Solid
Liquid to gas…
Evaporation / Vaporization
He created the solid sphere/billiard ball model.
John Dalton
The particles move quickly in all directions with electric charge.
Gas
He first attempted to group the elements by threes based on their similar properties. (Law of Triads)
Johann Dobereiner
Liquid to gas…
Deposition
Elements that have the same atomic number and number of protons but different number of neutrons.
Isotopes
He began writing a book named The Principles of Chemistry.
Dmitri Mendeleev
Pictorial representations of the electrons in an atom.
Orbital Diagrams
It is the ability of an atom to accept an electron.
Electron Affinity
It has no definite shape and no definite volume.
Gas
He thought if you take a piece of matter and keep dividing it, you will come to the point where it cannot be divided anymore.
Democritus
Whose ideas are these?
- All things are composed of atomos, which are too small to be seen by the naked eye and cannot be broken down.
- There are empty spaces between these inner structures of matter.
- Matter is made of solid particles.
- Matter has a uniform structure all throughout.
- Matter varies in shape, size, and weight.
Democritus
This rule states that the lower energy orbital should be filled first before the next higher energy orbital.
Aufbau Principle
His atomic model is the plum pudding model.
J.J Thomson
He determined the atomic number of each known element at that time.
Henry Moseley
The first scientist to recognize the interval between the elements when they are arranged according to their atomic mass.
Alexander Béguyer de Chancourtois
His atomic model is the nuclear model.
Ernest Rutherford
Gas to liquid…
Condensation
First person to use the term “atom.”
Democritus
