Their atoms have two electrons in the outermost energy level, so they react readily, form numerous compounds, and are never found free in nature. A group of metallic elements, especially calcium, strontium, magnesium, and barium, but generally including beryllium and radium. Alkaline Earth Metals: Group 2 in the periodic table.Because their atoms have only one electron in the outermost energy level, they are very reactive chemically (they react rapidly, even violently, with water), form numerous compounds, and are never found free in nature. A group of soft, white, low-density, low-melting point, highly reactive metallic elements, including lithium, sodium, potassium, rubidium, cesium, and francium. Alkali Metals: Group 1 in the periodic table.Electron Configuration Notation: A method of notation that shows the arrangement of electrons using a series of numbers, letters, and superscripts (e.g., 1s 2).Electron Configuration: The arrangement of electrons in an atom.Elements in a group have similar chemical properties. Group: A column in the periodic table elements in one group have the same number of electrons in the outermost energy level.Laminate the fill-in-the-blank worksheets (or put them in plastic page protectors) and use dry erase markers to fill in the answers.At first, you may want to use the alphabetical list of the elements so the students know how to spell each word.
They'll need to write down the atomic number and then the full element name next to it.
Joely decided she wanted to learn about chemistry this year, so I did some research and purchased Christian Kids Explore Chemistry.