Properties
What is a physical property?
A characteristic of matter that you can observe or measure without changing the identity of the matter.
Is it possible for a substance to exist in more than one state of matter?
Yes. Example: water
What is the center of an atom called?
The nucleus.
What is a row on the periodic table called?
Metals
Is melting point a size-dependent or size-independent property?
Size-independent
A bathroom mirror fogging up when you take a hot shower is an example of what type of state change?
Condensation
Where can protons be found in an atom?
The nucleus.
What determines where an element is on the periodic table?
Its atomic number.
Do nonmetals have high or low conductivity?
Low
What is flammability?
The ability of a substance to catch fire.
What is it called when a solid changes to a gas?
Sublimation
What charges do protons, neutrons, and electrons have?
Protons: positive
Neutrons: neutral
Electrons: negative
What is the chemical symbol of silver?
Ag
What is luster?
A property that describes a material's ability to reflect light.
Is conductivity a physical or chemical property?
Physical
What is the main distance between a physical and chemical change?
In a physical change, no new substance forms. In a chemical change, a new substance forms.
What is an atom's mass number?
The sum of protons and neutrons in the atom.
How many known elements are there?
118
What property describes a material's ability to be hammered into thin sheets?
Malleability
Is density a size-dependent or size-independent property?
Size-independent
True or false: In the process of deposition, thermal energy is added.
False: it is removed.
What can you use to identify an element?
Every element has a unique atomic number
How many groups are on the periodic table?
18
Give two reasons why the properties of gold make using it and advantage.
It is unreactive, malleable, conductive, ductile, and lustrous (must explain why each is advantageous).