Atomic Models
What subatomic particle was discovered by J.J. Thomson?
Electron
A neutral atom has 17 protons. How many electrons does it have?
17
Which type of elements tend to have larger atomic radius: metals or nonmetals?
Metals
Fill in the blank: Isotopes have the same number of protons, but different number of ________.
A. Neutrons
B. Electrons
A. Neutrons
Metal + Nonmetal make what type of bond?
Ionic
What experiment led Rutherford to propose the existence of a small, dense nucleus?
Gold Foil
Why are Noble Gases considered inert?
8 valence electrons
Which group on the periodic table has no electronegativity values?
Noble Gases
(Look on the board) Complete the following Fusion equation:
Nitrogen - 16
Ionic, Covalent, Metallic: I have a low melting point and not conductive. What type of bond am I?
Covalent
Which scientist introduced the idea that electrons travel in specific energy levels (or orbits) around the nucleus?
Bohr
T or F: The process of excitation is when we are able to see light.
False: de-excitation
What is the most reactive nonmetal on the periodic table?
Fluorine
The average atomic mass for Silicon is 28 amu on the Periodic Table. What is the Isotope that is most abundant?
Silicon - 28
Polar or Nonpolar: Which type is equal sharing?
Nonpolar
Which scientist discovered the nucleus of the atom?
Rutherford
Which element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p¹?
Aluminum
As you move from left to right across a period, does ionization energy generally increase or decrease?
Increase
What Isotope is most abundant for Calcium? (Hint: Look at Periodic Table)
Calcium - 40
A new substance needs to be made that is highly conductive as a solid. Which type of bond should be chosen to make it?
Metallic