Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

chapter 3 ww

QuestionAnswer
Scientists at the time thought that all matter was composed of what four substances earth, watr, air, and fire
4 basic essences wet, dry, hot, and cold
greek word for atom indivisible
How many elements have been identified 112
The physical combination of one type atom with another was visualized as being... eye-and-hook affair
His work resulted in the first periodic tble of the elements Mendeleev
How many groups are in the periodic table Eight
the only difference between atoms of another was their mass
another word for cathode rays electrons
the number of electrons was thought to equal the quantity of positive electrification because the atom was known to be electrically neutral
The smallest subdivision of electromagnetic radiation is an indivdual packet of energy called a photon or quantum
The alteration of the speed of visible light when it encounters transparent matterof varying densities is termed refraction
the number of protons determines the chemical element
with the develpment of high-energy particle accelerator, or ________ ________ as some call them, the structure of the atomic nucleus is slowly being mapped and identified particle accelerators
The 3 primary constituents of an atom or also called the fundamental particles electon, protons, and neutrons
The _______ of electrons around the nucleus determines the manner in hich atoms interact. arrangement
Because an atomic particle is extremely small, its mass is expressed in atomic mass units (amu)
atoms that have the same number of protons but differ in the number of neutrons are isotopes
the number of ______ ultimately determines the chemical behavior of an at
Scientists at the time thought that all matter was composed of what four substances earth, watr, air, and fire
4 basic essences wet, dry, hot, and cold
greek word for atom indivisible
How many elements have been identified 112
The physical combination of one type atom with another was visualized as being... eye-and-hook affair
His work resulted in the first periodic tble of the elements Mendeleev
How many groups are in the periodic table Eight
the only difference between atoms of another was their mass
another word for cathode rays electrons
the number of electrons was thought to equal the quantity of positive electrification because the atom was known to be electrically neutral
The smallest subdivision of electromagnetic radiation is an indivdual packet of energy called a photon or quantum
The alteration of the speed of visible light when it encounters transparent matterof varying densities is termed refraction
the number of protons determines the chemical element
with the develpment of high-energy particle accelerator, or ________ ________ as some call them, the structure of the atomic nucleus is slowly being mapped and identified particle accelerators
The 3 primary constituents of an atom or also called the fundamental particles electon, protons, and neutrons
The _______ of electrons around the nucleus determines the manner in hich atoms interact. arrangement
Because an atomic particle is extremely small, its mass is expressed in atomic mass units (amu)
atoms that have the same number of protons but differ in the number of neutrons are isotopes
the number of ______ ultimately determines the chemical behavior of an atom proton
the electrical charge of an atom is zero
in their normal state, atoms are electrically ______. (positive, negative, neutral) neutral
Equation of maximum electrons per shell 2n2
the force that keeps an electon in orbit is the centripetal force
emission of particles and energy in order to become stable radioactivity
another name for x-rays and gamma rays photons
Type of radiation including electrons, protons, and even rare neclear fragments if they are in motion and possess sufficient kinetic energy particulate
Who developed the concept of the atom as a miniature solar sysem niels bohr
Atoms of various elements may combine to forms these structures molecules
Created by: 1573058968