カテゴリー 全て - periodic - protons - groups - electrons

によって Melanie Thomas 12年前.

369

Intro to Chem .

The structure of an atom includes a nucleus containing protons, which are positively charged, and neutrons, which have no charge. Surrounding the nucleus are electrons, which possess a negative charge.

Intro to Chem .

Intro to Chem .

Periodic Table

groups into
nonmetals

noble gases

halogens

metals

alkaline earth metals

Alkaline earth metals have two valance electrons , have positive valance ,

alkali metals

Alkali metals are soft , highly reactive , have one valance electron , low melting points , & have positive valance .

Periods & groups .
is full of
Atoms

& have

nucleus

electrons

neutrons

protons

atomic mass

atomic number

Around Nucleus

Electrons ( Negative )

Inside Nucleus

Neutrons ( Neutral ) & Protons ( Positive ) .

isotope, atomic mass, atomic number, periodicity, periods, alkalai metals, alkaline earth metals, halogens, noble gases, ions, chemical reaction, reactants, products, reaction rate, kinetic theory