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chapter 1- 6 vocab

Vocab from chemisty honors review for midterm

Is the study of matter and the changes it undergoes Chemistry
Is also known as a chemical, matter which definite and uniform composition? Substance
A measure that reflects the amount of matter Mass
Anything that has mass and takes up space Matter
A measure of an amount of matter and also the effect of Earth's gravitational pull on that matter. Weight
A systematic approach used in scientific study; an organized process used by scientists to do research and to verify the works of others. Scientific methods
Information that describes color,odor or other physical characteristics. Qualitative data
Numerical information or data i.e. size and weight. Quantitative data
Describes a relationship in nature that is supported by many experiments. Scientific law
A defined unit in a system of measurement that is based on an object or event in the physical world Base unit
Used to express any number between 1 and 10 multiplied by 10 raised to a power. Scientific Notation.
The SI unit for length. Meter
The SI base unit for mass. The Kilogram
The SI base unit for temperature. Kelvin
A unit that is defined by a combination of base units. Derived unit
The SI base unit for Volume. Liter
How close a measured value is to an accepted value Accuracy
How close a series of measurements are to one another. Percision
All known figures plus one estimated digit Significant Figures
The ability or inability of a substance to combine or change into one or more new subtances. Chemical property
A characteristic of matter that can be observed or measured without changing the sample. Physical Property
Matter that change not change its shape or voulme due to its particles that are thigh and rigid. Solid
A form of matter that flows that conforms to its container but its volume does not change. Liquid
A form of matter that both conforms to its container and expamds to fill it. Gas
A gaseous state of a subtance that is a solid or liquid at room temperature. Vapor
A process involing one ore more subtances changing into new substances aka a chemical reaction. Chemical Change
States that mass is neither created nor destoryed during a chemical reaction but is conserved. Law of Conservation of mass
A transition of matter from one state to another. Phase of Change
A type of change that alters the physical properties of a subtance but does not change its compostion. Physical Change
A physical blend of two or more pure substances in any proportion. Mixture
One that does not have an uniform compostion and in which the indiviual substance remain distinct. A Heterogeneous Mixture
One that has a uniform compostion throughtout and always has a single phase aka a solution Homogenous Mixture
A Homogenous mixtures are also named. Solution
A chemical combination of any two or more different element. In which the elements can be broken down by chemical means and have different properties from those of its component elements. Compound
A pure subtance that cannot be broken down into any simpler substances by physical or chemical means. Element
A percentage determined by the ratio of each elements to the total mass of the compound. Percent by mass
A chart that organizes all known elements into a grid of horizontal rows and vertical columns arranged by increasing atomic number. Periodic table
The smallest particle of an element retains all properties of an element and is electrically netrual, sphereically shaped and is composed of electrons,protons and neutrons. An Atom
A negatively charged, fast-moving particle with an extermely tiny mass that is found in all forms of matter and moves through the empty space surrounding the atom's nucleus. An Electron
A subatomic particle that located in the necleus of an atom and is postively charged. Proton
A subatomic particle that is netural and is located in the necleus. Neutron
The extremly small, positivetly charged, densed center of an atom that houses the protons and neutrons. Nucleus
The number of protons in an atom. Atomic umber
Atoms of the same element with different numbers of neutrons. Isotope
The weighted average mass of the isotopes of the elements. Atomic mass
A form of energy that exhibits wavelike behavior as it travels through space. Electromagnetic radiation
Is the shortest distance between equivalent points on a continuous wave. Wavelength
Is the number of waves that pass a given point per second. Frequency
The wave's height from the origin to a trough. Amplitude
Includes all forms of electromagnetic radiation, frequency etc. Electromagnetic spectrum
Is the minimum amount of energy that can be gained and lost or gained by atoms. Quantum
Electrons that are emitted from metal with a frequency. Photoelectric effect
Is a mass less particle that carries a quantum of energy. Photon
A spectrum of an element that is the set of frequencies of electromagnetic waves emitted by atoms of the elements. Atomic emission spectrum
The lowest allowable energy state of an atom. Ground State
The number assigned to each orbital. Quantum number
An atomic model in which electrons are treated as waves aka The mechanical model of the atom. Quantum Mechanical Model of The Atom
A three dimensional region around the nucleus. Atomic Orbital
Is assigned by the quantum mechanical model of the atom to indicates relative size and energy of atomic orbitals Principal Quantum Number(n)
The energy levels contained within the principal energy levels. Energy sublevels
The arrangment of electrons in an atom, which is exampled in three rules. Electron Configuration
Rule 1: States that every electron must occupy the lowest energy level. Aufbau Principle
Rule 2: states that a there can only 2 electrons max. occupying a single orbital but only when there is 1 up can there a down arrow. Pauli exculsion Principle
Rule 3: All obrital must have an up arrow in each before any can have a down in it. Hund's rule
The electrons in an atom's outermost orbitals; determine the chemical properties of an element. Valence electrons
The vertical column of elements in the perodic table arranged in order of increasing atomic numbers aka a family Group
Are the families of the groups in the same row. Period
The groups in row 1,2, 3 13 to 18 are widely of chemical and physical properties are called this to specific them. Representative element
Elements in groups 3 to 12 in the modern periodical table that are contained in block d. Transition element
Elements that are shiny when flat, clean, is a solid at room, and is a good conductor of heat and electricity.(expect for mercury) Metal
Group 1 (expect hydrogen)in the periodic table are usually compounds with other elements. Alkali metal
Are two groups two the periodical table, which are highly reactive. Alkaline earth metal
Elements in groups of 3 to 12 of the periodical table contained in block b, some exceptions fill the outer most s orbital.= Transition metal
A type of group B elements that contains the f- orbital. Inner transition metal
In the periodical table, the f-block elements from period 6 that follow the element lanthanum. Lanthanide series
In the periodical table the f-block elements from that follows the elements function. Actinide series
Elements that are generally gases or dull, brittle solids that poor conductors of heat and electricity. Nonmetal
An extremely unreactive group of 18 elements. Noble gas
An element that has physical and chemical properties of both metals and nonmetals. Metalloid
A highly reactive group of 17 elements. Halogen
Created by: srdrama



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