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
chp 11 12
| Question | Answer |
|---|---|
| Atoms | All things re made up of atoms. |
| Parts of an Atom Nucleus | (protons and neutrons) |
| Proton | s Positive charge |
| Neutrons | Have no charge (neutral) |
| Opposites | attract +attracts – and vice versa |
| Electrons | have a Negative charge |
| Electron Cloud | Area where electrons are found |
| Mass | an electrons mass is much smaller than protons or neutrons |
| Volume | the electron clouds make up most of the volume |
| Overall charge | neutral because there are as many protons as electrons |
| Three Subatomic Particles | Protons, Neutrons, and Electrons |
| Element | an element is a substance that cannot be broken down into simpler substances by ordinary chemical mean. |
| Number of Protons | the number of protons determines what kind of element it is. |
| Number of Elements | There are over 100 types of elements and about 90 of the element are found in nature. |
| Smallest Unit of an Element | an atom is the smallest unit of an element. |
| Bonding atoms | Sharing or joining together of electrons. |
| Molecule | Group of two or more atoms held together by a very strong chemical bond. Two of the same atoms can join together to for a molecule |
| Compounds | Are pure substances made up of two or more different elements that are chemically joined. Compounds can only be separated by chemical reactions. |
| Properties of a Molecule | Properties of compounds can be very different than the elements used to create them. |
| Identifying Compounds, Molecules, and Elements Compounds | Molecules and Elements are represented by chemical formulas. |
| Periodic Table of Elements | Presents and organizes information about all the elements. |
| How the Periodic Table is Organized | Elements with similar properties are grouped closer together. |
| Atomic Number | The Atomic Number tells how many protons and electrons are in that element. |
| Atomic Mass | Measured in AMU, the atomic mass s protons + neutrons |
| Boxes in the Periodic Table | each box is a model of the atom it stands for. |
| Period | the horizontal rows in the periodic table, Periods are numbered 1-7 |
| Groups | a vertical column in the periodic table. Groups are numbered 1-18. Elements in a group have the same number of electrons in their outer level. |
| Metals | More than 75% of the periodic table is metals. Metals are located to the left of the dark step like line on the periodic table. They are usually shiny, malleable, and ductile and solid at room temperature. |
| Nonmetals Elements | that are not metal. The nonmetals include all the elements in Groups 17 and 18 and some elements in Groups 14, 15, and 16located above or to the right of the step like line. Many nonmetals are gases at room temperature. |
| Metalloids | Substances that have some characteristics of metals and nonmetals. The metalloids are located along the step like line of the periodic table in Groups 13, 14, 15, and 16. The metalloids are Boron, Silicon, Germanium, Arsenic, Antimony, and Tellurium |
Created by:
Lakeia
Popular Physical Science sets