Science Final Flashcards
The measure of how long matter is
Length
The amount of space an object takes up or occupies
Volume
Describes the amount matter in an object
Mass
A measurement of the gravitational force on an object
Weight
A measure of how hot or cold something is specifically, a measure of an average kinetic energy of the particles in an object
Temperature
The amount mass in a given volume
Density
anything that has mass and takes up space
Matter
A characteristic of a substance that can be observed without changing the identity of the substance. Examples; colors, shape, size, and texture
Physical properties
A change of matter form one form to another without a change in chemical properties
Physical change
- Flammability
2. Reactivity
Chemical properties
Occurs when one or more substances change into entirely new substances with different properties. Examples flammability, and relativity with substances such as oxygen, water, and acids
Chemical change
The smallest particle into which an element can be divided and still be the same element
Atom
CL (Chlorine) is an example of what
Molecule
H2O (water) is an example of what
Compound
Negatively charged particles that move within the electron cloud of an atom
Electrons
Negatively charged particles found in the necleus of an atom
Neutrons
Positively charged particles in the necleus of an atom
Protons
The number of protons in the nucleus of an atom
Atomic number
The total number of protons and neutrons in an atom’s nucleus
Mass number
Each vertical column of elements on the periodic table
Group
Each horizontal row of elements on the periodic table
Period
An interaction that holds atoms or ions together
Chemical bond
Electrons found on the outermost energy level of an atom
Valence electrons
The transfer of energy as EM waves
Radiation
The range of frequencies or wavelengths that EM waves can have
Electromagnetic spectrum
List the parts of the EM spectrum in order according to their wavelengths
Radio wave, microwave, inferred, visible light, ultraviolet, X-rays, and gamma rays
