Anything that takes up space and has mass
Matter
A positively charged subatomic particle that is found in the nucleus of an atom.
Proton
You have a rock with a volume of 15cm3 and a mass of 45 g. What is its density?
3.0g/cm3
The atomic number of hydrogen is 1. What is the number of electrons and protons?
1
The organized arrangement of all known elements
Periodic Table of Elements
A negatively charged subatomic particle that is found in the space outside the nucleus.
Electron
If a container has a mass of 48 g and a volume 6 cm3 what is the density of the container?
8g/cm3
The atomic number of aluminum is 13. An atom of aluminum that has a mass number of 27 has 13 protons.
How many neutrons are in aluminum?
14 neutrons
A type of matter that can not be broken down into another substance by chemical reactions.
Elements
A neutral subatomic particle that is found in the nucleus of an atom.
Neutron
You have a different rock with a volume of 30cm3 and a mass of 60g. What is its density?
2.0g/cm3
If the number of electrons is 31 and the atomic mass is 70. What is the atomic number?
Two or more atoms are connected by chemical bonds, which form the smallest unit of a substance that retains the composition and properties of that substance.
Molecule
If the atomic number of sulfur (S) is 16. Then the number of protons is ____
16
The sample has a mass of 14.7 g and a volume of 2.2 cm33. What is the density of the mineral sample?
6.7g/cm3
If the atomic number is 79 and the atomic mass is 197. What is the number of neutrons?
118 neutrons
A substance made up of two or more different chemical elements
compound
To determine the number of neutrons in an atom what equation needs to be used?
Neutron= Atomic mass - Atomic Number
You decide you want to carry a boulder home from the beach. The boulder has a volume of 27,000 cm3. It is made of granite, which has a typical density of 2.8 g/cm3. How much will this boulder weigh?
Volume x Density= Mass
27,000cm3 x2.8g/cm3=75,600 grams
If the atomic mass is 28 and the number of protons is 14. What is the number of neutrons?
14