← Chmeistry Test
6 Written Questions
6 Multiple Choice Questions
- the law that states that the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements
- Group 1, 1 electron in outer level, very reactive, soft, silver, shiny, low density; Lithium, Sodium, Potassium, Rubidium, Cesium, Francium
- an element in the s-block or p-block of the periodic table.
- a positively charged ion
- elements in groups 3 - 12 in the periodic table, all of which are metals
- the process of adding electrons to or removing electrons from an atom or group of atoms
6 True/False Questions
Atomic Radius → one-half of the distance between the center of identical atoms that are not bonded together.
Ionization energy → the amount of energy required to remove an electron from an atom
Electronegativity → the energy needed to remove an electron from a negative ion to form a neutral atom or molecule
ion → an atom or group of atoms that has a positive or negative charge
Actinide → any of a series of radioactive elements with atomic numbers 89 through 103
Halogens → group 17; contains nonmetals; 7 electrons in its outermost energy level; very reactive; poor conductors of electric current; never in its uncombined form in nature; combine with most metals to form salts