Chapter 5 :) Flashcards
What is a Group?
A vertical column of elements in the periodic table; elements in a group share chemical properties.
Mendeleev
He arranged the first periodic table and the discoverer of the periodic law. He also predicted the properties of the elements scandium, gallium, and germanium.
What is a Family?
Vertical column of the periodic table.
What is a period?
In chemistry, a horizontal row of elements in the periodic table
What is lanthinide?
A member of the rare earth series if the elements whose atomic #s range from 51 (cerium) to 71 (lutetium)
What is an actinide?
Any of the elements which have atomic #s from 89 (actinium) to 103 (lawrencium)
What are the noble gases?
Group 18 of the periodic table an they are unreactive
What is an alkali metal?
Group 1 of the periodic table
What is an alkaline metal?
Group 2 of the periodic table
What is the s block?
Shape: sphere
What is the p block?
Shape: peanut
What is the d block?
Shape double peanut
What is the f block?
Shape pinwheel
What is an electron configuration?
The arrangement of electrons in an atom
What is electronegativity?
A measure of the ability of an atom in a chemical compound to attract electrons
