Atomic Parts
This subatomic particle has a positive charge
What is a proton?
This dense, positive center contains most of an atom's mass.
What is the nucleus?
These are the vertical columns on the periodic table.
What are groups (or families)?
Nonmetals are generally found on this side of the periodic table.
What is the right side?
This lightest and most common element in the universe has only one proton.
What is Hydrogen (H)?
This uncharged (neutral) particle is found in the nucleus.
What is a neutron?
This is the unique number of protons in the nucleus of an atom.
What is the atomic number?
These are the horizontal rows on the periodic table.
What are periods?
Elements that have a dull luster, are brittle, and do not conduct electricity well belong to this category.
What are nonmetals?
This gas is famously used to make balloons float.
What is Helium (He)?
This particle has a negative charge and orbits the nucleus.
What is an electron?
This is found by adding together the number of protons and neutrons.
What is the mass number (or atomic mass)?
This is the total number of periods found on the modern periodic table.
What is seven (7)?
These unreactive elements in Group 18 "don't want to react with anybody".
What are the Noble Gases?
This precious yellow metal has the atomic symbol Au.
What is Gold?
Electrons located on the outermost energy level/shell are called this.
What are valence electrons?
You can calculate the number of neutrons by subtracting the atomic number from this.
What is the atomic mass?
Elements in the same group share similar traits because they have the same number of these.
What are valence electrons?
Elements that touch the zigzag line and share properties of both metals and nonmetals are called this.
What are metalloids (semimetals)?
This halogen is commonly added in small amounts to swimming pools to keep the water clean.
What is Chlorine (Cl)?
If an atom is electrically neutral, the number of protons always equals the number of these.
What are electrons?
If an atom of Lithium has 3 protons and 4 neutrons, it has this many electrons (assuming it is neutral).
What is 3 electrons?
Elements are arranged on the modern periodic table in order of increasing what?
What is atomic number?
Metals are found on this side and center of the periodic table.
What is the left side?
This metal is present in our blood and helps transport oxygen.
What is Iron (Fe)?