Particle Theory
All matter is made up of ____.
Tiny particles
Helium (He) is an example of a(n):
Element/Pure substance
Boiling point is an example of a ____ property.
Physical
The first column of elements in the periodic table are the:
Alkali metals
The maximum number of electrons in the fourth shell of a Bohr-Rutherford diagram is:
8
Particles are always in constant ____.
Motion
Water (H2O) is an example of a(n):
Compound/Pure substance
Flammability is an example of a ____ property.
Chemical
To determine the number of electrons in an element, you must first determine:
Atomic number/number of protons
The Bohr-Rutherford diagram with 1 shell and 1 electron is for the element:
Hydrogen
There is ____ between all particles.
Space
Air (Oxygen, helium, nitrogen, carbon dioxide) is an example of:
Mixture
Density is a physical change, but what type of physical change is it? (Hint: it starts with a Q)
Quantitative
These gases are the least reactive elements on the periodic table:
Noble gases
The maximum number of electrons in the first shell of a Bohr-Rutherford diagram is:
2
Adding heat makes particles move ____.
Faster
A pink liquid is heated and it produces black smoke, and then liquid begins to turn yellow. The liquid is most likely a:
Mixture
You've dissolved salt in water. This is known as:
Physical change
The elements along the staircase on the periodic table are known as the:
Metalloids
The outermost electrons of a Bohr-Rutherford diagram are called the:
Valence electrons
All particles in a pure substance are ____.
Identical.
A blue liquid is heated and it begins to disappear. The liquid remains blue. It is likely a(n):
Pure substance
This substance has the ability to dissolve more matter than any other liquid:
Water
Chlorine has an atomic number of 17, and an atomic mass of 35.4. Its number of neutrons is:
18
These subatomic particles are contained inside the nucleus of a Bohr-Rutherford diagram:
Protons and neutrons