Chemistry

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Story Time Book Task 2

par Michelle Vannesa Barbosa García

Regulation of Gene Expression

par David A Silva

Atoms

par Alan Crooks

Chemcial/ionic bonding

par Yun Shan

Floating topic

Added toghether equals the mass number

Equals the number of Protons if it is NEUTRAL

Negative Charge (-1)

Positive Charge (+1)

Neutral Charge (0)

Contains ONLY the electrons, ever

Electron Cloud

Electrons

Valence Electrons

Outer layer of electron cloud

Can be determined by the elements placement on the Periodic Table

A

Atomic Number

Neutrons

Mass-Protons

Unit Two

Atom

Nucleus

Determines if an element is an isotope or not

It is NOT an isotope if the protons, ALONE, are not the same.

Is an isotope if the mass of protons and neutrons are the same. Also is a proton if protons are the same and neutrons are not.