1.
Different types of atoms are called what?
2.
Elements on the Periodic table are arranged in what kind of format?
3.
Elements are placed based on their what?
4.
An elements atomic number is based on the number of protons and electrons in their ______.
5.
The periodic table have _____ rows.
6.
How many columns does the periodic table have?
7.
______ _________ was the first person to publish his attempt at the arrangement of the elements on the Periodic Table.
8.
How many elements are there today?
9.
What is the first element on the Periodic Table?
10.
Each Row of the Period Table is called a ______.
11.
Periods represent the energy level of _________.
12.
Columns on the periodic table are often called ______.
13.
Elements in the same groups have the same amount of electrons in their _________ shell.
14.
Groups on the far right side of the periodic table are rarely used in ________ reactions.
15.
_____ elements are good conductors of heat and electricity.
16.
The _________ within the metals are based on the similar characteristics and chemical properties of these collections.
17.
Group one of the metals on the periodic table is known as what?
18.
Metals Hard but malleable, shiny, and possessing good conductivity elements are part of what group?
19.
What group of elements are Colorless, odorless and almost completely nonreactive?
20.
What group on the periodic table make up the staircase?
