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
chapter 1 review
atoms and matter
| Question | Answer |
|---|---|
| what is an atom | a small particle that is the building block of matter |
| what happens when atoms combine | they form the different types of matter (by bonding) |
| what is an element | a substance made of only one kind of atom |
| what is a compound | two + elements that are chemically joined |
| anything that has ______ and takes up space | mass |
| most of _____ | elements |
| two classifications: ____ and ____ | compounds, elements |
| two types of molecules: ____ and ____ | substances, elements |
| what is made of only one type of atom, organized on the periodic table, and have a chemical symbol | element |
| what is made of two or more types of atoms bonded together, properties are different from the elements that make it up, and have chemical formulas | compound |
| what is made of two or more substances that are not bonded together, combinations of substances can vary, and there are two types of them | mixture |
| what has two or more substances unevenly mixed and have different substances visible by unaided eye or microscope | heterogeneous mixture |
| what has two or more substances evenly mixed and have different substances that cannot be seen by a microscope | homogeneous mixture |
| something that has lost or gained electrons | ion |
| ions have a negative____ | charge |
| atoms have a central region called _____ | nucleus |
| atoms have a region surrounding the central area called an ____ | electron cloud |
| an electron cloud contains____ | electrons |
| the nucleus contains particles called ____ and _____ | protons and neutrons |
| an isotope has the same number of these compared with other atoms of the same element | proton |
| an isotope has a different number of these compared with other atoms of the same element | neutron |
| the nucleus of an atom contains _____ and neutrons | protons |
| the nucleus has a _________ and the ________ of an atom | positively charged, most mass |
| an electron is a _____ particle located outside the nucleus | negatively charged |
| the modern model of an atom is called the _____ model | electron-cloud |
| electrons that are close to the nucleus have ______ than electrons that are farther from the nucleus | less energy |
| the atomic number is the number of ______ in the nucleus of an atom of an element | protons |
| isotope have the same number of protons but different numbers of _____ | neutrons |
| an ion has a charge because it has gained or lost _____ | electrons |
| a _______ ion has more protons than electrons | positive |
| adding a ______ to a neutral atom produces a new element | proton |
Created by:
harbahal2693
Popular Chemistry sets