Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Atomic Theory
| Question | Answer |
|---|---|
| atomic theory | scientific explanation of the structure of atoms and how they interact with other atoms. |
| What are the building blocks of all matter called? | Atoms |
| In current atomic theory, what are atoms mostly? | Empty space |
| What is the center of an atom called? | Nucleus |
| What is a nucleus? | Small, dense core of an atom |
| What is a nucleus surrounded by? | electrons |
| Atom | Smallest Unit of an element that maintains the properties of that element. |
| Proton | a positively charged particle found in the nucleus of an atom |
| Neutrons | particles found in the nucleus, has NO charge |
| Electrons | negatively charged particles that speed through an area around the nucleus called the electron cloud |
| element | type of matter mad of just one kind of atom |
| elements | can not be broken into simpler substances. |
| the atoms of an element | All Have the same number of protons |
| Number of protons | the number of protons is unique to a specific element. No other element will have the exact same number of protons. |
| Why can electrons be gained or lost? | Electrons are far from the nucleus |
| Can atoms of the same element have different number of neutrons | Yes, but the protons remain the same. |
| Give examples of elements | neon, mercury, chlorine, silver, copper |
| Molecule | Made up of two or more atoms joined together chemically |
| Compound | a substance formed by atoms from two or more elements. |
| Properties of a compound | often different from the properties of the elements that form it. |
Created by:
slhanlon
Popular Science sets