Ions
A positively charged ion that results from the loss of electrons is known as what?
Cation
What three things make up an atom?
Protons, Neutrons, and Electrons
Protons and electrons are the same size
False
How do you calculate an elements atomic mass?
neutrons + protons
Oxygen
15.99 (16)
The elements in Group 13 typically do what to have a complete outer electron shell?
Lose 3 electons
Atoms contain the same number of ___ and ___
Protons and Electrons
18 electrons fit on the third energy level
True
What happens to the nucleus of an atom when moving right to left in a single period on the periodic table?
Nucleus size increases
Hydrogen
1.00784
What would be the overall charge of an ion that has lost 4 electrons
positive 4
The smallest subatomic particle
Electron
A covalent bond is the force that holds cations and anions together
False- Ionic
Non-metals in group 18 of the periodic table that are non-reactive
Noble gasses
How does the atomic mass increase on a periodic table?
Left to right
The group tells us how many ________ an atom has
Valence electrons
The subatomic particle that has almost no mass?
Electron
Metalloids share properties of both metals and nonmetals
True
The only metal on the Periodic Table that is not a solid at room temperature
Mercury
Carbon
What is ionizing radiation?
removes electrons from atoms to become ionized
An atom that has the same amount of protons but a different number of neutrons is referred to as
Isotope
The periodic table is organized by when the element was discovered
False
F is the most ______ element
electronegative
Sulfur
32.065