Atoms
What is the smallest particle of matter that has the properties of an element?
Atom
What is a molecule?
Two or more atoms bonded together.
What is an element?
A pure substance made up of only one kind of atom
What does the Periodic Table organize?
Elements
What are the three subatomic particles of an atom?
Protons, neutrons, and electrons.
What type of bond holds the atoms in a molecule together?
A chemical bond.
How many elements are there in the periodic table?
118
What are "periods" on the Periodic Table?
Rows
What is the charge of a proton?
Positive
What is the simplest molecule made of two hydrogen atoms and one oxygen atom?
Water (H₂O)
What is the symbol for gold?
Au
What is the element name and chemical symbol in GROUP 6, PERIOD 6?
Oxygen, O
What do you call an atom that has gained or lost electrons?
An ion
What is the difference between a molecule and a compound?
A molecule can be made of the same type of atoms; a compound is made of different types of atoms.
Which element occurs the most in the universe?
Hydrogen
What do you call vertical columns in the Periodic Table?
Groups
What is the nucleus of an atom made of?
Protons and neutrons
What is a molecule that consists of two identical atoms called?
A diatomic molecule.
Which element has the chemical symbol 'FE' ?
Iron
What element is found in Group 1 of the Periodic Table?
Lithium (Li)