(Chemistry) The periodic table - The elements Flashcards
ty ella
How many elements are on the periodic table?
118
How many elements are natural?
94
How many elements are synthetic?
24
What are atomic numbers on an element?
An element’s atomic number represents the number of protons found in one atom of the element.
It is also how elements are organized on the periodic table.
What is atomic mass?
The mass of one atom in an element.
What are diatomic elements?
Diatomic elements are unstable on their own and have to join others.
(ty ella)
What are the 7 diatomic elements?
Hydrogen (H)
Oxygen (O)
Fluorine (F)
Bromine (Br)
Iodine (I)
Nitrogen (N)
Chlorine (Cl)
What is an atom?
The smallest particle of an element that retains the properties of the element.
What is inside the orbit?
Electrons
What is inside the nucleus?
Protons and neutrons
Protons have a ___ charge and electrons have a ___ charge.
Protons have a positive charge and electrons have a negative charge.
What is the formula for neutrons?
Mass - Atomic
What are the subatomic particles?
Neutrons, Protons, Electrons
