Atoms
How can scientist study atoms and molecules?
Scientist use models to study Atoms and Molecules.
What is a chemical equation?
A chemical equation is the reactants and the products of a chemical reaction. EX: H2 + 0 -> H20 This is the chemical equation of water.
Models can be online or in person.
Where can you find a model?
What is a substance?
A substance is a group of chemicals that makes something. It could be a liquid, solid or gas.
Every element has different labels.
How do we tell two different atoms apart when looking at the periodic table?
Can atoms be seen with no special tools?
Atoms cannot be seen without special tools because they are tool small to be seen alone. They are microscopic.
What can chemical equations show?
Chemical equations show the chemical reaction of a substance.
What is the purpose of a model?
A model is something used to help up see things close up and get a better view and experiment with things that are too small or too big for us to see.
Can substances have different properties?
Substances can have different properties such as color, shape, size, temperature, and or boiling point.
Are molecules on the periodic table?
Molecules are not on the periodic table. There are only atoms on the periodic table and atoms go join in groups and these make molecules. Different atoms make different substances.
During a chemical reaction, does each atom change?
Atoms never change during a chemical reactions but molecules do change.
What can chemical equations help us understand?
They help us know what two chemicals are put together and what product is made by those two chemicals.
Why are models special?
Models can help you see things that are too small or too big to be seen alone. Models can give you information on something and help you excrement with things.
Substances have different properties by being made of different substances.
Where are atoms placed on the periodic table?
Atoms are placed by there atomic number and next to other atoms that they make chemical reactions with.
Can new atoms be made during a chemical reaction?
New atoms can never be made and old atoms can never be destroyed during a chemical reaction.
How do you write or show a chemical equation?
Ex: h2+0-> h20
You write the two reactants and the product.
A scale is a measurement of something.
What are scales?
How do atoms make new substances?
Atoms rearrange to make new substances with new properties.
What does the atomic number represent in the Periodic table of elements?
It represents how many protons are in the nucleus.
How do atoms make up a substance?
Repeating groups or pattern of atoms make up a substance. This is an atomic pattern and it is what all substances are made of.
What are reactants and products?
Reactants are two chemicals that are combined to make a product. The product is the combination of the two chemicals to make another substance.
How are scales helpful when experimenting with substances?
Scales help you get the exact size, weight, length or volume of a substance and that helps up with getting information on a substance and helps us experiment with a substance.
A property is something that you can observe from an object or substance.
What are properties?
What elements are on the periodic table?
All the elements are on the periodic table. This table is made to show what is each substance or element and is made to show us and give us information about every substance