Part of the Atom
This subatomic particle has a positive charge and is found in the nucleus.
Proton
A substance that contains only one kind of atom
element
A group of atoms bonded together
molecule
The pH range of acids
0 to 6.9
The pH range of bases
7.1 to 14
An atom that has gained or lost an electron and has an electrical charge
ion
These negatively charged particles travel around the nucleus in shells
electron
This scientist classified elements by atomic weight and created the periodic table
Dimitri Mendeleev
A molecule with atoms from two or more different elements
Compound
These ions are formed when acids are dissolved in water
hydrogen ions (H+)
These ions are formed when bases are dissolved in water
hydroxide ions (OH-)
This type of bond occurs when atoms share pairs of electrons
covalent bond
This part of the atom contains both protons and neutrons
nucleus
These horizontal rows of the periodic table contain elements with the same number of shells
periods
The study of matter, what it's made of, and how it reacts with other matter
Chemistry
Acids will cause blue litmus paper to turn this color
red
Bases will cause red litmus paper to turn this color
blue
This type of bond forms when positively and negatively charged ions attract each other
ionic bond
This subatomic particle has no electrical charge
neutron
The number of protons in the nucleus of an atom
atomic number
The process in which different types of atoms join and form new substances
chemical reaction
The taste characteristic of acids
sour
The taste characteristic of bases
bitter
NaCl is an example of this type of bond
ionic bond
This scientist developed a simplified model of an atom
Niels Bohr
These vertical columns in the periodic table contain elements with the same number of electrons in their outer shell
groups
The chemical symbols and numbers that show the elements that make up a compound
chemical formula
Acids do this with electrons in chemical reactions
accept electrons
Bases do this with electrons in chemical reactions
donate electrons
This ionic compound is formed from a reaction between an acid and a base
salt