RANDOM
Something that has mass and takes up space.
Matter
These are the names of a row and a column on the Periodic Table.
What are periods and groups/families?
A type of change where a NEW substance is formed. The new substance has different properties from those of the reactants.
chemical change
The inner part of an atom that contains the proton and the neutron is called the __________.
Nucleus
Ice would be an example of which state of matter
What is a solid
What must happen for matter to change states?
What is it must gain or lose energy?
This is the sum of the an atom's protons and neutrons
What is atomic mass
color, shape, and solubility are examples
physical properties
These particles have a positive charge and are found inside the nucleus.
Proton
Smoke is an example of which kind of matter
Gas
These are poor conductors of heat and electricity. They are dull in appearance
What is a nonmetal
This is the number of protons in the nucleus of each atom of an element
What is the atomic number
Salt (NaCl) and iron oxide combine to make a new substance are examples of this.
chemical change
These particles are located within the nucleus, and have no charge.
Neutron
When a gas is cooled it becomes a what?
Liquid
The amount of space on object occupies.
Volume
These are found on the right side of the stair case on the periodic table
nonmetals
Properties that can only be observed by changing the substance.
chemical properties
These particles are negatively charge and are found outside the nucleus.
electrons
In what state do molecules move extremely quickly and by bouncing off each other
Gas
Figure out the number of electrons on each energy level for NEON
1st level - 2
2nd level - 8
an element (e.g. arsenic, antimony, or tin) whose properties are intermediate between those of metals and solid nonmetals or semiconductors.
what is metalloids
The characteristics that can be observed about matter without changing it.
physical property
How many protons, neutrons and electrons are in calcium?
Atomic Number: 20
Atomic Mass: 40.08
Neutrons- 20
Elections- 20
Change from a liquid to a solid
Freezing