History of an Atom

Question 1

Parts of an Atom

Answer 1

Proton
Neutron
Nucleus
Electron
Orbitals

Question 2

Made up of Protons an Neutrons and is the CENTER of an Atom

Answer 2

Nucleus

Question 3

Where Electrons Orbit around the Nucleus

Answer 3

Orbitals

Question 4

Atoms derive from the _____ word _____, meaning _____

Answer 4

Greek; “Atomos”; indivisible

Question 5

Theory that drew upon Ancient Greek ideation and states that atoms are indivisible, elements are identical, and compounds are combinations of different types of atoms.

Answer 5

Solid Sphere Model by John Dalton (1803)

Question 6

In 1897, J.J. Thomson called electrons what?

Answer 6

Corpuscles

Question 7

Theory that SUBSEQUENTLY discovered electrons in 1897. It won a Nobel Prize and shows the atom is composed of electrons SCATTERED throughout a POSITIVELY-CHARGED spherical cloud.

Answer 7

Plum Pudding Model by J.J. Thomson (1904)

Question 8

Theory founded that atoms were mostly EMPTY SPACE, with a positively charged centre: nucleus. Discovered by firing positively charged alpha particles at thin sheets of gold foil. Where, most passed with little deflection but some at large angles.

HINT: It is said to look like a SOLAR SYSTEM

Answer 8

Nuclear Model by Ernest Rutherford (1911)

Question 9

Theory states that electrons do not move in set of paths around the nucleus but in WAVES. Orbitals are called “clouds of probability” where we are more likely to find an electron.

Answer 9

Quantum Model by Erwin Shrodinger (1926)

Question 10

What are orbitals called in the Quantum Model?

Answer 10

Clouds of Probability

Question 11

Draw all the Models Accurately

Answer 11

Refer to this GDrive Link:

https://drive.google.com/file/d/1-ZbaJXukSV1iBfvpcHz1Kl1o3Hd87G-d/view?usp=drivesdk