Periodic Table
What is the atomic number of oxygen?
What is 8?
What are the three main subatomic particles of an atom?
What are → Protons, Neutrons, and Electrons?
What type of bond occurs if sodium loses an electron?
What is an ionic bond?
Who was the first to use the term atomos, meaning "indivisible"?
Who is Democritus?
What is the simplest element on the periodic table?
Which element has the chemical symbol K?
What is potassium?
Where are protons and neutrons located in an atom?
What is the nucleus?
The bond between two atoms who share electrons
What is a covalent bond?
Who discovered the electron?
Who is JJ Thomson?
Which element is essential for human breathing and survival?
What is oxygen?
What are the horizontal rows in the periodic table called?
What are periods?
What is the charge of a neutron?
What is neutral?
According to Rutherford, where is most of an atom’s mass located?
What is the nucleus?
What is the atomic number for gold?
What is 79?
What are the vertical columns in the periodic table called?
What are groups or families?
What does the atomic number of an element represent?
What are the number of protons?
Which subatomic particle is responsible for chemical bonding?
What are the electrons?
Who proposed that electrons orbit the nucleus in fixed energy levels?
Who is Bohr?
What is the charge of a proton?
What is positive?
The __________ __________ group on the periodic table has balanced (full) outer valence shells and is stable (not reactive.)
What are noble gases?
How do you calculate the number of neutrons in an atom?
What is the mass number – atomic number?
H2O is an example of what type of bond?
What is a covalent bond?
Who discovered the neutron in 1932, and why was this discovery important for atomic theory?
Who is Chadwick?
What is an isotope?
What is an element that has the same number of protons but a different number of neutrons in its nucleus?