Li, Na, and K have similar properties, all in 1 group. Sodium (Na) has properties similar to Lithium (Li). Elementsin the same group or familyhave similar characteristics or properties.Ex.Metallic character increases from top to bottom.The vertical (up and down) columns of the periodic table (there are 18) are called groups (18)or families(I- VIII).Draw atomic structure of H & He as a class.Mass # is the # of protons PLUS the # of neutrons (each equals 1 AMU).Atomic # is equal to the number of protons or electrons (unless charged).
What’s the difference between Mass # & atomic #?
Arranged in rows called periods and columns called groups or families.A way of organizing & classifying elements.29 - Complete fill in the blanks portion of blue packet and turn in. 5 and 6 -Complete yellow Birdley Background: Mendeleev’s table and paste onto p. 28 Periodic Table Trends Notes IQ: On the PT, most elements are non-metals, on left hand side metals, on right hand side non-metals on right hand side metals on left hand side. Modern Periodic Table Periodic – means regular, repeated pattern.Ģ/21 p. OQ: Find the only 2 liquid elements on the PT. The only ones known to create a magnetic field.First elements in groups 8,9, 10 called the iron triad.In space, vast quantities interact with starlight to create spectacular sights such as the Eagle Nebula (seen by the Hubble Space Telescope). Color it GRAY By weight, 75% of the visible universe is hydrogen, a colorless gas.Use Roman numerals I thru VIII to show the families.A Flash animation by Mike Stanfill, Private Hand IQ: What are some ways for organizing information in Science? Why do we organize information?.Each of you needs1 of each of the following colors: Red Orange Blue Green Purple Pink Brown