Element Symbol
The chemical symbol for Oxygen.
What is O
The Group 18 gases known for being highly unreactive.
What are Noble gases.
The periodic table is organized horizontally by rows, which are called this.
What are periods.
The atomic number of an element always equals the total number of these subatomic particles.
What are protons?
This lightweight noble gas is used to lift weather balloons and party balloons.
What is Helium?
The chemical symbol for Gold, derived from the Latin word aurum.
What is Au
Highly reactive Group 1 metals like Lithium, Sodium, and Potassium.
What are Alkli Metals.
Moving from left to right across a period, atomic radius changes in this specific way.
What is decreasing? (It gets smaller)
You calculate this by adding the total number of protons and neutrons together.
What is atomic mass? (Mass number)
This alkaline earth metal is essential for building strong teeth and bones
What is Calcium?
The element represented by the symbol K.
What is Potasium
The Group 17 elements, including Fluorine and Chlorine, whose name means "salt-former."
What is Halogens
This property measures an atom's ability to attract shared electrons, peaking at Fluorine.
What is electronegativity?
Atoms of the same element that have the same number of protons but different numbers of neutrons.
What are isotopes?
This toxic liquid transition metal was historically used inside household fever thermometers.
What is Mercury?
The chemical symbol for Sodium, which comes from the word natrium.
What is Na
The name given to the large block of metallic elements found in Groups 3 through 12.
What are Trasition Metals.
This trend describes the amount of energy required to remove an electron from an atom.
What is ionization energy?
The term for electrons located in the outermost shell of an atom.
What are valence electrons?
This metalloid is the primary semiconductor material used to manufacture computer chips.
What is Silicon?
The element represented by the symbol W.
What is Tungstan.
The specific family name for the highly radioactive elements in the very bottom row of the periodic table, spanning atomic numbers 89 to 103.
What are Actinides.
This element has the highest atomic radius on the entire periodic table.
What is Francium?
An atom that has gained or lost electrons, resulting in a net electrical charge.
Answer: What is an ion?
This gas makes up roughly 78% of Earth's atmosphere, making it the most abundant uncombined element on the planet.
What is Nitrogen?