Question | Answer | | |
What is the smallest unit of an element that retains the property of that element? | an atom | | |
What are made from two or more atoms that are joined together? | a molecule | | |
What molecule is made of hydrogen and oxygen? | water | | |
What is the atomic number of an atom? | the number of protons in an atom | | |
What is the center of an atom called? | the nucleus | | |
what is inside the nucleus of an atom? | protons | neutrons | |
What moves around the nucleus of an atom? | electrons | | |
Protons carry what charge? | positive | | |
Neutrons carry what charge? | neutral | | |
Electrons carry what charge? | negative | | |
What are some properties of metals? | luster | conductivity | flexibility |
Metals are good conductors of what? | heat | electricity | |
What is the flow of electrons from one atom to another called? | electricity | | |
All matter is made of what? | atoms | | |
How can a scientist separate water into hydrogen and oxygen gas? | by running electricity through it | | |
How are elements arranged on the periodic table? | by atomic number | | |
What does the atomic number of an atom represent? | the number of protons in an atom | | |
What kind of physicist studies the inside of an atom? | nuclear | | |
What must be aimed at the nucleus to separate the neutrons? | an electron beam | | |
What parts of the universe are made of either matter or energy? | everything | | |
What type of atoms are in every living thing? | carbon | | |
What are the 3 most common forms of matter? | solids | liquids | gases |
What material cannot be broken down into anything simpler? | an element | | |