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Bushong Ch 2
Structure of Matter
| Question | Answer |
|---|---|
| What fundamental particle has a neutral charge | neutron |
| Whose atomic model described atoms being connected together using a hook and eye system | Dalton |
| The Greeks model described atoms as being described or modified by four_________ ; wet, dry, hot, cold | essences |
| In radioactive decay, what type of emission involves an unstable nucleus creating an electron then ejecting it in order to become stable | beta |
| What type of bonding occurs when an electron transfers from one atom to another | ionic |
| Which fundamental particle is located outside the nucleus | electrons |
| What 2 fundamental particles are located inside the nucleus | protons and neutrons |
| What energies work to keep the orbiting electrons in their appropriate place around the nucleus | centripetal, centrifugal, binding |
| Which energy keeps the electron from flying out of orbit | centripetal |
| Which energy prevents the electron from moving closer to the nucleus | centrifugal |
| What electron shell is closer to the nucleus | k |
| Which type of atom presents with the same atomic number and atomic mass but varying energy states due to nucleon arrangement | isomers |
| What occurs when several molecules of the same composition combine | compound |
| When atoms of various elements combine they form | molecules |
| What is the dense center of the atom called | nucleus |
| What is the maximum number of electrons in an N shell if it is the outermost shell of an atom | 8 |
| What type of charge do alpha particles have | positive |
| What type of charge do beta particles have | negative |
| What type of charge do photons have | no charge or mass |
| What will an alpha particle become when it picks up electrons and stabilizes | helium |
| What is the force that kees an electron in orbit | centripetal |
| The atomic mass number of an atom is usually | a whole number |
| Columns or groups in the periodic chart are associated with | the number of electrons in the outermost shell |
| T or F: A compound is any quantity of one type of molecule | true |
| What type of bond is created when two atoms share electrons because neither atom is strong enough to attract the electrons from the other atom | covalent |
Created by:
lkdickson
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