Matter: Elements
Occupies space and has mass
What is matter?
The smallest unit of an element that retains its unique properties
What is an atom?
The subatomic particle that is so tiny it doesn't contribute to the atomic weight of an atom
What is an electron?
Area around the nucleus of an atom where electrons will have their most likely position
Electron shell
Thing formed when atoms are joined together
What is a molecule?
The three states in which matter can exists
What is gas, liquid or solid
The subatomic particles that make up atoms
What are protons, neutrons and electrons?
The term to describe something that has the properties of both waves and particles
What is a waveicle?
Location of the lowest energy electrons
What is the first electron shell closest to the nucleus?
The symbol of a molecule made up of 2 oxygen atoms
What is O2?
The most plentiful elements in the body
What are nitrogen, oxygen, hydrogen and carbon
AKA the major elements (96% of matter in living creatures)
The particles that make up the atomic nucleus
What are protons and neutrons?
Comparative number of electrons and protons in an atom
What is the same?
The determinant of the chemical activity of an atom
What is state of fullness of their outer electron shell?
The name of a substance that is made up of atoms of different elements
What is a compound?
A trace element that is a critical component of hemoglobin
What is iron?
The particles in the atom that are in constant motion.
What are electrons?
Name of an atom that has gained or lost an electron giving it negative or positive charge
What is an ion?
The word to describe chemically inactive elements
What is inert?
The definition of a compound of a molecule
What is the smallest unit of a compound that retains the properties of that compound?
Minor element present in bones and teeth
What is calcium?
The charge of an electron and the charge of a proton
What is negative (electron) and what is positive (proton)?
The name of an atom that contains a different number of neutrons to its typical form
What is an isotope?
The electron capacity of the 3rd (Letter M) electron shell
What is 18?
Examples of common compounds in the mammalian body
What are sodium chloride (NaCl) and carbon dioxide(CO2)?