CHAPTER 2 ( SCIENCE ) : The Periodic Table Flashcards
Examples of 5 different chemical elements in the periodic table :
Hydrogen, Oxygen, Iron, Copper, Nitrogen
What is the function of the periodic table?
The periodic table is a system for arranging all the 118 different chemical elements.
In what way the periodic table is arranged?
In rows and columns.
In rows, the elements are placed in order of their _______
atomic number
The columns form groups of elements that have similar _______
chemical properties
Who invented the periodic table?
Dmitri Mendeleev
Who invented the periodic table?
Dmitri Mendeleev
Group 1 : Alkali Metals
Examples :
Lithium, Sodium, Potassium, Francium
Group 7 : Halogens
Examples :
Chlorine, Bromine, Fluorine, Iodine
Group 8 : Noble gases
Examples :
Helium, Neon, Argon, Krypton
Group 8 : Noble gases
Examples :
Helium, Neon, Nitrogen, Oxygen
The periodic table arranges elements in groups and?
periods
Which of the following are not considered Alkali Metals?
a. Sodium
b. Calcium
c. Potassium
d. Lithium
b. Calcium
Which of the following is the element which has the chemical symbol “Fe”?
a. Iron
b. Fluorine
c. Francium
d. Gallium
a. Iron
Elements are placed in the periodic table based on their?
Atomic number
