Show:
The Atom
Elements and Isotopes
Properties of Matter
The Periodic Table
Grab Bag
100
True or False: Positive charges attract other positive charges
False - Opposite charges attract
100
Atoms of the same element always have the same number of which particle in their nucleus?
Protons
100
Metals and Salts are examples of which structure of solids?
Crystalline solids
100
Metals are found on which side of the Periodic Table?
The left
100
In which phase of matter can atoms completely break their bonds - solid, liquid or gas?
Gas phase
200
What are the tiny, negatively charged particles that orbit the nucleus of an atom called?
Electrons
200
Isotopes, like Carbon-12 and Carbon-14, are atoms of the same element that have different numbers of ______________.
Neutrons
200
Which structure of solids is described as 'long chains of repeating molecules'?
Polymers
200
Which element has 39 protons in the nucleus of it's atoms?
Yttrium
200

The atom pictured above is an atom of what element?
Lithium
300
What are the positively charged particles in the nucleus of an atom called?
Protons
300
How many protons are in the nucleus of an atom of Oxygen-18?
8 protons
300
Solids that can easily transmit heat and electricity are said to have what property?
Conductivity
300
Vertical columns on the table are called groups, and they all have similar __________ __________.
Chemical properties
300
Name an element with similar chemical properties as Carbon.
Silicon, Germanium, Tin, Lead
400
What is the charge on a neutron?
No charge (neutral)
400
An atom of Oxygen-18 has how many neutrons in its nucleus?
10 neutrons
400
Objects that can be compressed and then return to their original shape are described as having what property?
Elasticity
400
Which region on the Periodic Table includes materials that are typically brittle, dull and poor conductors of heat and electricity?
Nonmetals
400
What is the name of the family group that includes Fluorine, Chlorine and Iodine?
Halogens
500
About how much smaller are electrons than protons and neutrons? (Answer must be within 15% of relative size stated in book)
Electrons are about 2,000 (1,836) times smaller than protons and neutrons.
500
Use the terms 'atomic number' and 'mass number' to write a formula for finding the number of neutrons in an Isotope.
Mass Number - Atomic Number = # of Neutrons
500
An object that can be bent and shaped without breaking is best described as having what physical property?
Ductility
500
List the atomic symbols of all of the Noble (Inert) Gases
He, Ne, Ar, Kr, Xe, Rn
500
Which element is named after the creator of the Periodic Table?
#101 Mendelevium
Named after the creator of the table - Dmitri Mendeleev