Chapter 6 Flashcards
(29 cards)
Groups
Columns in periodic table
Periods
Rows in periodic table
Representative elements
Elements in groups 1,2,13,18. Wide range of chemical/physical properties
Transition elements
Groups 3-12 metals, non metals, metalloids
Metals
Generally shiny, solid at room temperature and good conductors of heat and electricity
Alkaline metals
Group 1 elements, except hydrogen, reactive
Alkaline earth metals
Group 2 highly reactive, good for health (calcium, magnesium)
Transition metals
Groups 3-12, f block
Inner transition metals
Group b, f block, fill outermost orbitals
Actinide series
F block element from period 7 that follows actinium
Lanthanide series
2 inner set of inner transition metals
Non-metals
Elements such as gases, dull looking solids
Halogens
Group 17, highly reactive elements
Noble gasses
Extremely unreactive elements, group 18
Metalloids
Physical & chemical properties of both metas, and nonmetals
John newlands
Arranged order of atomic mass. Law of octaves
Lother meyer
Connection between atomic mass and elemental properties. Order of atomic mass
Demitri mendeleev
Connection between atomic mass and elemental properties. Order of atomic mass. Predicted undiscovered elements.
Henry Moseley
Protons equals atomic number. Order of atomic number
Period law
Statement that elements are arranged by increasing atomic number
Ion
Atom or bonded group of atoms with a positive or negative charge
Ionization energy
The energy that is required to remove an electron from a gaseous atom
Electronegativity
Indicates the relative ability of its atoms to attract electrons in a chemical bond
What are the s block elements?
First two rows on the left
