Term | Definition |
The number that identifies an element | Atomic number |
The sum of the protons and neutrons | Atomic mass/weight |
Positively charged particle in an atom | Proton |
Negatively charged particle in an atom | Electron |
Most current model of an atom | Electron cloud |
Neutral particle in an atom | Neutron |
Center of an atom | Nucleus |
A column on the periodic table is called a ____ | Family/group |
A row on the periodic table is called a ___ | Period |
Family 17's famous name | Halogens |
Family 1's famous name | Alkali Metals |
Family 2's famous name | Alkaline Earth Metals |
Family 18's famous name | Noble Gases |
These are found mainly on left side of the periodic table | Metals |
These get more reactive as you go down the family | Metals |
These get more reactive at you go up the family | Non metals |
These are mainly solids at room temperature | Metals |
These are found mainly on the right side of the periodic table | Non metals |
Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Polonium, Astatine are _______ | Metalloids |
______ are brittle if found in solid form | Non metals |
______ have properties of metals and non metals | Metalloids |
______ are malleable and ductile | metals |
To be able to stretch out into thin wires | ductile |
To be able to hammer into shape or flat sheets | malleable |
Element name for B | Boron |
Families 3 through 12 and periods4 through 7 | Transition metals |
Electron energy level 1 holds ____ | up to 2 electrons |
Electron energy level 2 holds____ | up to 8 electrons |
Electron energy level 3 holds____ | up to 18 electrons |
Electron energy level 4 holds____ | up to 32 electrons |
Electron energy level 5 holds____ | up to 32 electrons |
Electron energy level 6 holds____ | up to 18 electrons |
Electron energy level 7 holds____ | up to 8 electrons |
Element name for Mn | Manganese |
Element name for Au | Gold |
Element symbol for Silver | Ag |
Element symbol for Iron | Fe |
Element name for Cr | Chromium |
Element name for C | Carbon |
Element name for H | Hydrogen |
Element name for Er | Erbium |
Family 13 period 4 | Gallium |
Period 7 family 18 | Ununoctium |