Periodic Table
This group of extremely nonreactive gases occupies Group 18 on the far right of the periodic table.
What are the Noble Gases?
As you move from left to right across a period, atomic radius generally does this.
What is Decrease?
This is the maximum number of electrons that can occupy a single s subshell.
What is 2?
These positively charged subatomic particles located in the nucleus determine an element's atomic number.
What are Protons?
Accounting for roughly 75% of all elemental mass, this is the most abundant element in the universe.
What is Hydrogen?
Elements in Group 1 are known by this collective name and react violently when mixed with water.
What are the Alkali Metals?
This property measures an atom's relative ability to attract shared electrons within a chemical bond
What is Electronegativity
The ground-state electron configuration
1s2 2s2 2p6 3s1 belongs to this element.
What is Sodium (Na)?
Nearly all of an atom's mass is concentrated in this tiny, extremely dense center.
What is the Nucleus?
Derived from its original Latin name Aurum, this is the two-letter chemical symbol for Gold.
What is Au?
Horizontal rows on the periodic table are called periods, while vertical columns are called this.
What are Groups (or Families)?
This specific element holds the highest electronegativity value on the entire periodic table.
What is Fluorine?
This orbital type holds a maximum of 10 electrons and begins filling in Period 4 starting with Scandium.
What is the d orbital?
An atom becomes a negatively charged ion (anion) by doing this with electrons.
What is Gaining Electrons?
Derived from the Latin word Plumbum, this heavy metal was historically used in water pipes, paint, and gasoline additives.
What is Lead?
Found along the stair-step dividing line, these elements exhibit properties between metals and nonmetals.
What are Metalloids (or Semimetals)?
The amount of energy required to remove the most loosely held electron from a neutral atom is called this.
What is First Ionization Energy?
Using noble gas shorthand, the ground-state electron configuration for a neutral Calcium atom (atomic number 20) is written as this.
What is [Ar] 4s2?
Atoms of the same element with the same number of protons but different numbers of neutrons are called this.
What are Isotopes?
These two elements are the only ones on the periodic table that exist as liquids at standard room temperature and pressure.
What are Mercury (Hg) and Bromine (Br)?
Group 17 contains these highly reactive nonmetals, named after the Greek word for "salt-former."
What are Halogens?
As you move down a group, atomic radius increases primarily due to the addition of these.
What are Electron Shells?
This is the noble gas shorthand electron configuration for a neutral Chlorine atom.
What is [Ne] 3s2 3p5?
An isotope of Carbon-14 contains 6 protons and this number of neutrons.
What is 8?
Named after the creator of the periodic table, element 101 bears this chemical symbol and name.
What is Md Mendelevium?