Properties of Matter
In which change of state does a solid change to a gas without going to a liquid first?
Sublimation
The simplest and most common element in the universe causes the sun to burn and is found on the earth as a gas.
Hydrogen
Specific types of atoms or molecules that each have unique properties.
How can you tell that two elements have many properties in common?
They are listed in the same vertical column or group.
What does a chemical formula contain?
It contains chemical symbols that represent the elements and the numbers of atoms within a compound.
Matter has _____ and takes up space.
mass
Organic compounds, such as sugar, contain the element _____ and are associated with life on the earth.
carbon
The smallest parts of matter that still contain all the properties of that matter are _____.
atoms
These communicate the quantity of protons found in elements.
atomic numbers
Formula for copper dichloride?
CuCl2
A _____ change results in a substance changing size or shape while remaining the same substance, and it is sometimes possible to change the substance back.
physical
The most abundant element on the earth is very reactive and is vital for air and water.
Oxygen
The only substance that exists naturally in all three forms of matter is _____.
water
The inner transition series are the _____ the periodic table.
two bottom rows that are cut off from
What elements are in NaCl?
chlorine and sodium
The measure of space an object is taking up is its _____.
volume
This element is used in concrete and is the most abundant element found in the earth’s rocks.
silicon
These are atoms chemically joined together.
molecules
Who first arranged the periodic table?
Dmitri Mendeleev
How many atoms are in MgCO3 ?
5
Matter in a _____ state does not have a defined shape but has viscosity and retains a defined volume.
liquid
How many elements exist naturally on the earth?
98
Reacting strongly with other elements, _____ explode easily.
alkali metals
Found in the top row of the inner transition series, these are sometimes called rare earth metals.
lanthanides
How many atoms are in NH4NO3?
9