Show:
Describing Matter and Changes in Matter
Classifying Matter
Measuring Matter
Introduction to Atoms
Organizing the Elements
100
The two kinds of properties that all matter has
What is physical properties and chemical properties?
100
A salad is an example of this type of mixture.
What is a heterogeneous mixture?
100
A measure of the force of gravity on you.
What is weight?
100
The smallest particle or piece of an element that can still be considered an element.
What is an atom?
100
The chart that lists all of the known elements in an organized way, and displays information about each of the elements.
What is the periodic table!!!
200
Anything that has mass and takes up space
What is matter?
200
Something made of 2 or more substances that are together in the same place, but their atoms are not chemically bonded.
What is a mixture?
200
An international system of standardized units that everyone uses to do science.
What is the International System of Units, or SI units.
200
The first person to come up with a model for the atom.
Who is John Dalton?
200
The scientist who is credited as the first person to organize all of the elements known (at the time) into a chart
Who is Mendeleev!!!?
300
The definition of 'substance'
What is a single type or kind of matter that is pure?
300
Lemonade and soy sauce are examples of this type of mixture.
What is a homogeneous mixture?
300
The SI unit of mass.
What is the kilogram?
300
If two particles attract each other, we can say this about the charges they have.
What is they have opposite charges? One negative, one positive.
300
The characteristic that the modern periodic table is organized by:
What is atomic number (number of protons)?
400
Flammability is an example of this type of property.
What is a chemical property?
400
The parts of this type of thing do not have to be combined in a set ratio.
What is a mixture?
400
Liquid A floats on top of Liquid B when they are in the same container. We can say this about how the densities of A and B compare:
What is Liquid A is less dense than Liquid B?
400
Specific areas in which electrons move; circular orbits that correspond to a specific amount of energy. Bohr's model and the cloud model have these as a part of their atomic models.
What are energy levels?
400
How Mendeleev could predict the properties of elements that had not yet been discovered.
What is because the gaps in is early periodic table were in specific groups, and he knew the properties of the other elements in that group. Because elements in the same group tend to have similar properties, he could predict the unknown element's properties.
500
Three different types of physical properties.
What is hardness, state of matter, conductivity.
500
Three different ways to separate mixtures.
What is distillation, evaporation, filtration. (also magnetic attraction)
500
A box has a length of 10 cm, a width of 5 cm, and a height of 2 cm. What is the volume of the box? What are the correct units for the volume of the box?
What is 100 centimeters cubed?
500
After doing his gold foil experiment, Rutherford concluded this.
What is that the atom's positive charge must be packed within a small region in its center.
500
A new element has been discovered! It has 7 isotopes that we know of so far. Scientists want to know what the atomic mass should be for this element. The masses of the isotopes are 120 amu, 121 amu, 122 amu, 119 amu, 117 amu, 130 amu, and 137 amu. This is the atomic mass for the new element. Include the proper unit!!!
What is the average of all of the masses of the isotopes: 123.71 amu?