Atoms | ||
#1 | How is an atom related to matter? |
An atom is the smallest particles of matter. |
#2 | What is the charge of a proton and what is the charge of a neutron? | A protons have a postitive charge and a neutron have a nuetral charge. |
#3 | How do you know the number of protons in the nucleus of an atom? | the atomic number |
#4 | Why is the atomic mass important? | Atomic Mass helps to determine how many neutrons are in an atom. |
#5 | Describe why atoms are electrically nuetral. | Since there are the same number of protons and electrons in an atom, the charges cancel each other out. |
Elements and Atoms | ||
#1 | What is an element? | An element is a prue substance that can't be broken down into simpler substances by ordinary chemical means. |
#2 | How is an atom related to an element? | Each kind of atom is element |
#3 | What is the particle located on the outside of the nucleus and what is it's charge? | An electron and it has a negative charge |
#4 | List the particles located in the nucleus of an atom and their charge. | Protons, neutrons, electrons |
#5 | What is the main feature used to distinguish the atoms of different kinds of elements? | the atomic structure |
Molecules, Compounds, and Mixtures | ||
#1 | Define compound. | A substance produced when elements combine and whose properties are different from each of the elements. |
#2 | What is the difference between a compound and a mixture? | Compound is formed chemically, while a mixture is when a pure substances combine but do not join. |
#3 | What is the difference between a heterogeneous and homogenous mixture? | Both are combinations of pure substances, but homogeneous mixtures can easily be seperated by physical means. Homogeneous mixtures can not. |
#4 | Compare and contrast compounds and mixtures? | Compounds and mixtures are both combinations of pure substances. Mixtures are joined but compounds do not. |
#5 | What is the difference between an element and a compound? | A compound is formed chemically, while an element is formed physically. |
Basic Knowledge | ||
#1 | Define matter. | Matter is the only thing that has a mass or volume. |
#2 | Define mass. | Mass is the amount of matter in a substance |
#3 | Define volume. | Volume is the amount of space the substance occupies |
#4 | Define mixture. | A combination of compounds and elements that has not formed a new substance and whose proportions can be changed without changing the mixtures identity? |
#5 | Define molecule. | A neutral particle formed when atoms share electrons. |
Bonus Questions | ||
#1 | Sodium is an element found in table salt. It contains 11 protona and 12 neutrons. How many electrons are found in a neutral atom of sodium? |
 Eleven |
#2 |  Soil is made up of pieces of rocks, woods, decayed plants, and many other materials. Soil is an example of... |
 A mixture |
#3 |  A pure substance that can be seperated into two or more simpler substances by chemical means is ... |
a compound |
#4 |  A molecule of carbon dioxide is shown above. Based on the makeup of the molecule, what is the correct chemical formula for carbon dioxide?  |
|
#5 |  If the chemical formula above is the formula for glucose, how many different elements make up one molecule of glucose? |
Three |
Final Question | |
What is an isotope? | Isotopes are atoms of the same element that have different numbers for neutrons it contains. |