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Atomic Theory
Atomic Theory Scientists
Periodic Table Facts
Electron Configuration
100

The most electronegative element:

What is fluorine?

100

The current model for the atom is called this.

What is the quantum mechanical model?

100

The early Greek philosopher responsible for the idea of the atom.

Who is Democritus?

100

The vertical columns are called these.

What are groups/families?

100

This orbital can house just two electrons.

What is the s - orbital?

200

The element with the largest atomic size:

What is Francium?

200

This model introduced electrons into the atomic model.

What is the Plum-Pudding Model?

200

The first scientist to publish an atomic theory to attempt to explain the makeup of the atom and its properties.

Who is John Dalton

200

The horizontal rows are called these.

What are periodts?

200

This sub-orbital can be found as the last term in halogens and noble gasses alike.

What is the p - orbital?

300

Which is more electronegative: Carbon or Nitrogen?

What is nitrogen?

300

The probability region to determine where an electron could be.

What is the electron cloud?

300

This scientist won the Nobel Prize for Physics with his work on discovering the neutron, a neutrally-charged particle in the nucleus.

Who is James Chadwick?

300

The father of the periodic table responsible for the initial development of the periodic table.

Who is Dmitri Mendeleev?

300

The last sub-orbital to be completely filled for Potassium.

What is the 3p sub-orbital?

400

Which is more electronegative: Sr or Br?

What is Br?

400

In John Dalton's formation of atomic theory, John Dalton said this is how elements combined to form compounds.

What are simple, whole-number ratios?

400

Matter can gain or lose energy in small, specific amounts called these.

What are quanta?

400

The weighted average of the masses of the different isotopes for a particular element.

What is atomic weight?

400

These orbitals start at lower energy levels in comparison.

What are the d and f sub-orbitals?

500

The halogen with the lowest ionization energy.

What is Ts?

500

The main finding from the Gold Foil experiment.

What is the idea that the atom is mostly empty space?

500

Niels Bohr said an electron enters this state when an atom gains energy.

What is an excited state?

500

The reason why elements in the same families have similar chemical and physical properties.

What are valence electrons?

500

The shorthand configuration of Iodine.

What is [Kr] 5s2 4d10 5p5?

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