vocab Flashcards
Metaloid
a element whose properties are intermediate with properties of those of metal and solid nonmetals or semiconducters
Proton
a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of the opposite sign.
Atom
a source of nuclear energy
Element
an element is an source of energy or an object(solid) found on or under earths surface an element can be a gas solid or liquid
Non metal
Non metals are gas liquids stretchy solids anything malleable that isn’t made in a factory
Metal
A metal is a object found on or under the earths surface and is a solid
Neutron
A neutron is a part of an atom with no charge
Periodic Table
A periodic table is a table full of elements of the earth that humans use
Gold
Gold is an element on the periodic table commonly used in jewelry
Neon
Neon is a element on the periodic table and commonly used in lights and colors
Electron
An electron is a part in a atom
Mixture
A substance made by mixing other substances together
Compound
A thing that is composed of two or more separate elements; a mixture
Matter
Matter is everything
Physical change
A physical change is a change of one thing and then you can turn it back into the beginning thing example ice to water you can turn it back into ice
chemical change
A chemical change is a change that occurs when you burn wood or make elephant toothpaste you cant turn it back into that object or liquid
State of matter
State of matter is the state of matter an object is in solid liquid or gas
Period
A period is a column on the periodic table
Group
A group is a vertical column on the periodic table
Valence electron
A valence electron is the amount of electrons in each element in each group the amount is always the same as the group number but 3-12 have no valence electrons
