Physical Science Review Chpt. 1-6

Change of state from a liquid to a gas

When ice melts into a liquid, energy is

The buoyant force on an object in fluid is an upward force to the weight of the fluid that the object displaces

One of the elements of group one on the periodic table

A statement or equation that reliably predicts events under certain conditions

The knowledge obtained by oberving natural events and conditions; laws hypothesis eta

Atoms that have same # of protons but different # of neutrons

The smallest unit of an element

Charle’s law

Composition of a compound in terms of relative numbers and kinds of atoms in the simplest ratio

A positively charged ion

A chemical compound always contains the same elements in exactly the same proportions by weight or mass

Characteristics that can be observed without changing the identity of a substance

A bond formed by attraction between positively charged metal ions and electrons around them

Anything that has mass and takes up space

The exactness of a measurement

Upward force that keeps an object immersed in or floating on fluid

An electron that is found in the outer most shell

The measure of gravitational force exerted on an object

An element that is shiny and conducts heat and electricity well

The factor in an experiment that is intentionally changed by the experimenter

The factor left unchanged in an experiment in order to prove a comparison

Nonsolid state of matter in which atoms/molecules are free to move past each other as in gas/liquid

The resistance to flow

Describes something with math equations

A factor that changes in an experiment in order to test a hypothesis

An ion made of two or more atoms

A particle that has a positive charge

A group of atoms that are held together by chemical forces

A possible explanation or answer that can be tested

Prescribed decimal place the determines the amount of round off to be done based on the precision

A negatively charged ion

The continuing search for scientific knowledge

Description of how close a measurement is to the true value of the quantity measured

A combination of 2 or more things that aren’t chemically combined

Describes how a substance changes into a new one either by combining w/ other elements or breaking apart into new ones

The ability to burn

A series of steps

A substance that cannot be broken down into simpler substances by chemical means

A vertical column of elements on the periodic table

One of the metals that can use the inner shell before using the outer shell to bond

A method of expressing a quantity as a number multiplied by 10 to the appropriate power

Gay-Lussac’s law

Describes something with WORDS

A change of matter from one form to another without a change in chemical properties

3 main groups are metals, nonmetals, and transition metals

A substance made up of atoms of two or more different elements joined by chemical means

The temp and pressure at which a liquid becomes a gas

System of ideas that explain observations and supported by large body of evidence acquired by scientific investigation

How many atoms are in Fe2O3

The process in which a solid changes directly into a gas

The factors in an experiment that are left unchanged in order to isolate the independent variable

Substances are evenly distributed and the mixture is the same throughout

Boyle’s law

Sample of matter either 1 element or 1 compound that has definite physical and chemical properties

A particle that has a negative charge

Carbon has 6 protons. How many valence electrons?

An atoms central region; made up of protons and neutrons

The arrangement of atoms in a substance

The ratio of the mass of a substance to the volume of the substance

One of the elements of group two of the periodic table

Matter can be created or destroyed

The # of protons in the nucleus of atom

Branches of science

Capacity of a substance to combine chemically with another substance

The factors in an experiment that change in response to independent variable

A change in pressure at any point in an enclosed fluid will be transmitted equally to parts of fluid

The total kinetic energy of a substance atoms

A change that occurs when one or more substances change into entirely new things with different properties

One of the elements in group 17 of the periodic table

The capacity to do work

Avogadros number is…6.02x10*23

What is the name for ionic compound MnF3

Attractive force between oppositely charged ions, which when electrons are transferred from one atom to another

A particle that has no charge

Substances aren’t mixed uniformly and are not evenly distributed

A horizontal of elements on the periodic table

A law that states that the repeating chemical and physical properties of elements change periodically with atomic number

A charged atom

Change of state from a gas to liquid

An element of compound that conducts electric current better than an insulator doe but not as well as a conductor

The temp and pressure at which a solid becomes a liquid

Amount of force exerted per unit area of a surface

A chemical formula that shows the number and kinds of atoms in a molecule, but not arrangement of atoms

A unit of mas that describes the mass of an atom or molecule

The attractive force that holds atoms or ions together

The laws that state math relationship between volume temp pressure and quantity of a gas

Region in atom where there is high probability of finding electrons

An element that conducts heat and electricity poorly

The sum of #s of protons and neutrons in nucleus

A bond formed when atoms share one or more pair of electrons

A unit of light

Which of the following is Alkali metal

The application of science for practical purposes