Atomic structure - Prior knowledge

​Atomic structure

By Céline Sailly

Dalton's Atomic Theory

In 1808, this English schoolteacher, John Dalton, proposed his own atomic theory that became widely accepted.

Dalton’s Atomic Theory:

–All elements are made of atoms.

–Atoms cannot be subdivided.

–Atoms of the same element are exactly alike.

–Atoms of different elements can join to form molecules.

Multiple Choice

Which model was proposed by Neils Bohr?

• Planetary Model
• Plum Pudding Model
• Quantum Mechanical Model
• Solid Ball Model

Atomic Structure

Multiple Select

Structure A is

• The valence shell

• An electron shell

• An energy level

Multiple Choice

Structure B is

• The nucleus

• An electron shell

• An energy level

Multiple Choice

Structure C is a(n)

• Proton

• Neutron

• Electron

Multiple Choice

Structure D is a(n)

• Proton

• Neutron

• Electron

Multiple Choice

Structure E is a(n)

• Proton

• Neutron

• Electron

Multiple Select

The structures indicated by F are

• Valence shells

• Electron shells

• Energy levels

Multiple Choice

Structure E has what charge?

• Neutral

• Positive

• Negative

Multiple Choice

Structure D has what charge?

• Neutral

• Positive

• Negative

Multiple Choice

One of the major differences between the 1st Atomic Theory presented in the 1800's and the Modern Model of the atom of today is:

• That atoms of all elements are the same.

• That atoms can be decomposed (broken down) into other atoms.

• That atoms do not contain a nucleus.

• The atom can be divided into subatomic particles.