atoms, ions, and reactions Flashcards
(14 cards)
what is the study for biology
the study of living things
what is the study of chemistry
the study of properties of matter
what is the study of physics
the study of energy, motion and forces
what is the study of earth and space
the stufy of life on our planet and beyond
what are atoms
atoms are tiny particles that consit of a nucleus containing protons and neutrons with electrons orbiting the nucleus
what charges do protons, neutrons, and electrons have
proton=positive
neutron=neutral
Electron=negative
how do you find the atomic number
number of protons in the nucleus + number of electrons orbiting
how do you find the mass number
number of praticles found in nucleus (protons+neutrons)
what is a CATION
it is when a metal element loses electrons and then becomes positively charged
what is a ANION
it is when non metals tend to gain electrons and become negativly charged
what is a monoatomic ion
An ion made of one type of atom
what is a chemical reaction
it is when a chemical changes into one or more substances
what happens in a reaction
breaking between chemical bonds and forming new bonds between atoms
what happens to the number of atoms after the reaction
The number of atoms will stay the same but the number of molecules will change
