Periodic Table 1
There are 18 of these.
What are groups or families?
These elements are found on the zigzag line.
What are Metalloids?
Period 2 has how many shells?
What is 2 shells?
Number located on the bottom of the element box
What is the atomic mass?
Most metals are this state of of the matter.
What is solids?
The three classes of elements are these.
What are metals, nonmetals, metalloids?
The elements in column 18 are also known as ___________. (Hint: Noble Gases)
What is the Inert Gases?
Elements in the same group share these characteristics.
What are chemical and physical properties?
The number located at the top of the element box.
What is the atomic number?
Most stable elements.
What are the Noble Gases?
Only nonmetal on the metal side.
What is Hydrogen?
Mendeleev organized the elements of his periodic table according to this.
What is increasing atomic mass?
Number of neutrons are different from protons and electrons.
What is an isotope?
The vertical columns of the periodic table.
What are groups/families?
These metals are the most reactive.
What is group 1 (the Alkali metals)?
These have properties of brittleness, low boiling/melting points, dull, and poor conductors of heat and electricity.
What are nonmetals?
This number is 1,840 times smaller than the mass of a proton.
What is the mass of an electron?
Number of naturally made elements in the universe.
What is 92?
Modern Model is known as ________________.
What is the Cloud Model ?
These nonmetals are the most reactive.
What are Halogens (group 17)?
The atomic mass is the sum of these 2 particles.
What are the protons and neutrons?
Location of these elements are on the right side.
What are nonmetals?
These elements are all made synthetically, also called tranuranium elements
What are elements 93-118?
These elements are sometimes called rare earth metals.
What are the Lanthanides?
A row on the periodic table.
What is period?