Basic Elements
Element Properties
Structure of the Atom
Masses of Atoms
The Periodic Table
100
What is the chemical symbol for carbon?
C
100
What are the 3 characteristics of metals (from my notes)?
most are solids at room temperature, good conductors of heat and electricity, Shiny
100
What is a quark and how many are there?
Smaller particles of protons and neutrons. There are 6 quarks.
100
How do you find the number of neutrons?
Round mass #, then subtract atomic number.
100
What is the name of the organized table of elements that was designed by Mendeleev?
The periodic table of elements.
200
Cu
What is the chemical symbol for copper?
200
What are the characteristics of non-metals?
Most are gases, poor conductors of heat and electricity, brittle
200
How many times larger is the electron cloud than the diameter of the nucleus?
100,000 times
200
Why is the atomic mass of an element an average mass?
The average atomic mass is the weighted average of the masses of the element's isotopes.
200
What are the names of these elements and classify each as a metal, a nonmetal, or a metalloid: K, Si, Ba, and S
K, potassium, metal Si, silicon, metalloid, Ba, barium, metal S, sulfur, non-metal
300
Ag
What is the chemical symbol for Silver?
300
What is an isotope?
Atoms of the same element that have different numbers of neutrons.
300
What are bubble chamber?
Bubble chambers are used by scientists to study the tracks left by subatomic particles.
300
Which is the following terms describes boron?
metalloid
300
What is an electron dot diagram?
Uses the symbol of the element and dots to represent the electrons in the outer energy level (shell).
400
Hg
What is the chemical symbol for Mercury?
400
Horizontal = Vertical =
rows/periods groups/families
400
What does John Dalton's atomic model look like?
A simple sphere.
400
The halogens are located in which group?
17
400
How are isotopes of an element alike?
Isotopes have the same number of protons but different numbers of neutrons.
500
Fr
What is the chemical symbol for Francium?
500
The atomic number of Re is 75. The atomic mass of one of its isotopes is 186. How many neutrons are in an atom of this isotope?
111
500
What are the names, charges, and locations of 3 kinds of particles that make up an atom?
protons (+) and neutrons (0) are in the nucleus of the atom and electrons (-) are located in the electron cloud.
500
What state is nitrogen found at room temperature?
gas
500
What year was the Rutherford Model developed?
1911
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