Atomic Structure Review Part 1

The Atom

100

This particle contains the positive charge located in the nucleus

The proton

200

This particle contains a negative charge and is located outside the nucleus.

Electron

300

This particle contains no charge and is located in the nucleus of an atom.

Neutron

400

Atoms of the same element but with different amounts of neutrons.

Isotopes

500

What is the relative mass for each particle of the Atom? 

Proton: 1      Neutron: 1     electron: 0

Name that element

100

Al

Aluminum

200

Mn

Manganese

300

K

Potassium

400

Fe

Iron

500

Hg

Mercury

History

100

This scientist had 5 postulates that described the fundamental basics of the Atom.

John Dalton

200

This scientist discovered the neutron by shooting nitrogen with alpha particles

James Chadwick 

300

This scientist used the cathode ray tube to determine that the Atom contained a particle with a negative charge.

J. J. Thompson

400

Used radiation and gold foil to prove the existence of the nucleus and the proton. Helped prove that the Atom was mostly empty space.

Ernest Rutherford

500

This scientist theorized that the electron exists in orbitals around the nucleus (s, p, d, f) and moves as both waves and particles.

Schrodinger 

Missing Particle

100

53 P⁺    56 n^o     ___e^-       Mass # = 109

53 e^-

200

12 P⁺     ___ n^o     12 e^-     Mass # =25

13 n^o

300

____ P⁺     33 n^o     ____ e^-     Mass # = 62

29 p⁺  29 e^-

400

___ P⁺     ___ n^o     92 e^-     Mass # = 238

P⁺: 92     n^o: 146

500

___ P⁺     53 n^o     51 e^-     Mass # =______

p⁺: 51  Mass # = 104

Conversions

100

Density

Mass / Volume

200

Avagadro's Number (mole)

6.022 x 10²³ atoms/mole

300

Molar Mass

Grams/Mole

400

How do you find the average atomic mass of an element?

Average the masses of all the isotopes of that element

500

Metric Conversions (grams, liters, meters)

K H D base d c m