| A | B |
|---|
| proton | positively charged particle found in the nucleus |
| electron | negatively charged particle found outside the nucleus |
| Krypton | I am located in period 4 and have 8 valence electrons. Who am I? |
| valence electrons | The electrons in outer shell are called... |
| 32 | How many electrons can be held in the 4 shell? |
| Mendeleev | The creator on the periodic table is ... |
| 92 | # of elements found in nature |
| Halogens | another name for family 7A |
| Noble Gases | another name for family8A |
| Alkali Family | another name for family 1A |
| Alkaline Family | another name for family 2A |
| Transition Elements | another name for the B families |
| Periods | Indicate the number of shells found around the nucleus |
| atoms | The smallest part of an element is the... |
| chemical symbol | abbreviation of an element |
| number of protons | the atomic number represents the... |
| protons and neutrons | the mass number tells you the number of |
| the number of neutrons | mass number minus atomic number equals |
| quarks | 3 smaller particles found in each proton |
| 2000 times smaller than a proton | size of an electron compared to a proton |
| metalloids | elements located along the stairstep |
| aluminum | element located along the stairstep that is not a metalloid... |
| hydrogen | element found on the left side of the table that is not a metal... |
| bromine and mercury | 2 elements that are liquids at room temperature |
| metals | elements to the left of the stairstep |
| nonmetals | elements to the right of the staircase |
| 4A | All member of this family have 4 valence electrons |
| 7A | All members of this family have 7 valence electrons |
| 7A (halogens) | All members end in "ine" |
| metalloid | Is Arsenic a metal, nonmetal or metalloid? |
| Non-metal | Is Oxygen a metal, nonmetal or metalloid? |
| Metal | Is Calcium a metal, nonmetal, or metalloid? |
| 3 | Lithium's atomic number |
| 119 | Tin's (Sn) atomic mass number (weight) |
| 20 | Potassium (K) has ___ neutrons. |
| 9 | Fluorine has ___ protons. |
| those farther away from the nucleus | Which electrons have the most energy? |
| electron cloud | Modern version of the atom |
| Bohr | Atom model with rings |
| empty space | An atom consists mostly of... |
