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Flashcards by Chad Blackman, updated more than 1 year ago
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| Question | Answer |
| Who first published the Periodic table and when did they publish? | The first recognized Periodic table was published by Dmitri Mendeleev in 1869. |
| What are the columns in the periodic table called? | The columns in the periodic table are called groups. |
| How many groups are they on the periodic table? | They are 18 groups. |
| What are the rows on the Periodic table called? | The rows are called periods. |
| How many rows are they on the Periodic table? | They are 7 periods (rows). |
| What is the name given to group one elements? | Alkali metals. |
| What elements are found in group 2? | Alkali Earth metals. |
| What type of elements are located as you go to the right side of the Periodic table? | Non-metals. |
| What is the name of the elements in group 17? | These are called halogens. |
| What is the name of elements in group 18? | These are called noble gases. |
| Noble gases are so called because... | They are inert (nonreactive). |
| What trends decreases as you descend group 2? | First Ionization Energy & Electronegativity. |
| What trend increases down group 2? | Atomic radius. |
| What is electronegativity? | Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. |
| What trends increase across a period? | First Ionization Energy & Electronegativity. |
| What trend decreases across a period? | Atomic radius. |
| What is first ionization energy? | The first ionization energy is the energy it takes to remove one electron from an atom. |
| What is atomic radius? | The atomic radius is a measure of the size of an atom, usually the distance from the center of the nucleus to the boundary of the surrounding cloud of electrons. |
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