Acids And Bases Flashcards
The amount of basic atoms are:
118
Lustrous
They shine when polished
Malleable
They can be bent into new shapes without breaking
Ductile
Can be stretched into wires
Element cannot
Be broken down into more fundamental substances
There are ____ known elements arranged in order of their atomic number
118
___ atoms are made in the
20, laboratory
—- types of atoms are found naturally on earth
98
Crystal lattices
Are grid like structures (sio2)
Element is a substance whose atoms all
have the same number of protons: element’s atoms have the same atomic number
Compound
A substance that results from a combination of two or more different chemical events. They are held together by chemical bonds that are difficult to break
Mixture
Composed of two or more seperate elements
Inside atoms
Atoms are made up of even smaller particles known as subatomic particles
Electrostatic attraction
Negative charge of electrons causes them to be attracted to the positively charged protons
Repulsion
Opposite charges (+/-) attract each other like charges (+/+) (-/-) repel each other
Electron cloud
Used to describe where electrons are when they go around the nucleus of an atom
Neutron
It is a subatomic particle (smaller than or occurring within an atom). Neutrons have zero change = are neutral particles (not supporting // no strong features)