Atoms
What charge does a neutron have?
No charge (0), neutral
Which of the following is a physical property: colour, rusting, or burning?
Colour.
When you add oil to water, the oil will float on top. This tells you that oil is less ________ than water.
Dense
How many electrons can go in the first shell of a bohr-rutherford diagram?
2
What are the three main particles found in an atom?
Protons, neutrons, and electrons
Give one example of a quantitative physical property.
Answers vary. Mass, boiling point, Density etc.
If an object’s density is greater than water (1.0 g/cm³), will it float or sink?
Sink
How many shells would you draw for Lithium (Hint: Lithium has 3 protons)
2
Electrons are found on these.
Orbits
True or false: Flammability is a physical property.
False. It is chemical.
mL and cm³ are both units of _______.
Volume
Left side (left of the metalloid "staircase")
If an atom has more electrons than protons it has a _______ charge.
Negative
Give an example of a qualitative physical property.
Answers vary. E.g. Colour, smell, texture
What is the formula for Density?
Density = mass / volume
Which Chemical Family of elements is very unreactive. Why is it unreactive.
Nobel Gases. Because they have a full outer shell of electrons.
How many total atoms does B2(SO2)2 have?
8
Why is solubility considered a physical property?
Because a substance dissolving doesn’t change its identity or chemical makeup.
If an object has a mass of 10 g and a volume of 2 cm³, what is its density?
5 g/ cm3
The first group (column) of elements on the periodic table belong to the ______ chemical family.
Alkali Metals