Atom
What are subatomic particles?
Protons, neutrons, and electrons.
Where are the metals found on the periodic table?
On the left side of the zigzag or the left side on the periodic table.
Which element has the symbol H?
Hydrogen
A compound composes of 2 or more what?
A compound composes of 2 or more different elements.
What do particles look like in a solid?
Particles are tightly packed together.
What is the charge and location of an electron?
An electron is located outside of the nucleus and has a negative charge.
How many groups are there on the periodic table?
There are 18 groups on the periodic table.
Li
They can only be separated through a chemical reaction.
Which phase of matter takes the shape and volume of a container?
A gas.
The atomic number of an element is equal to the number of which subatomic particle?
The atomic number of an element is equal to the number of protons.
How many periods are there on the periodic table?
There are 7 periods on the periodic table.
What is the symbol for Magnesium?
Mg
Which elements are present in the compound NaCl?
Sodium and chlorine
A solid to a liquid is which phase change?
melting
Protons & neutrons are bigger than an electron.
Group 18 is the noble gases.
What is the symbol for potassium?
K
No, there are only hydrogen atoms present.
A gas to a liquid is which phase change?
condensation.
This atom has an atomic mass of 20.
The Alkaline earth metals is which group?
Group 2
An element is stable when it has this many valence electrons.
An element is stable when it has 8 valence electrons.
What compound is formed between lithium and chlorine? (show through symbols)
LiCl
Does a substance take in or releases heat when it evaporates?
A substance takes in heat when it evaporates.