the horizontal row of elements in the periodic table
what is Period
what is hydrogen?
Ne (neon) is located...
What is Group 18 (noble gases)
The alkaline earth metals are located in...
What is group 2
How many elements are there in the periodic table?
what is 118?
electrons on the outermost energy level of an atom
what is valence electrons
What is Oxygen
Li located in period...
what is period 2
______ are types of elements that are usually a gas or a brittle solid at room temperature, not malleable or ductile, and are poor conductors of heat and electricity.
What is Nonmetals?
Who is generally considered the father of the modern periodic table?
Who is Mendeleev
elements in 3-12 are
what is transition metals
what is sulfur?
He is located in period...
what is period 1
group 7A elements are called the
what are the halogens
Elements in the same group share...
What is valence electrons
A one or two-letter abbreviation for an element. The first letter is always capitalized.
what is atomic symbol
What is chlorine?
What element is in group 15, period 4
What is As (Arsenic)
What tells you the number of valence electrons in that group has?
what is group number?
Which of the noble gases is radioactive?
what is Radon?
The number of protons and neutrons. It can also be defined as everything in the nucleus of an atom.
what is atomic mass
what is oganesson?
What element is located in Group 15, period 5
what is sb (Antimony)
group 5A is called
what is the Pnictogens
Periodic tables are organized into vertical groups and horizontal periods. Loonium and Burgium are found in the same period, but Burgium is in group 4, and Loonim is in group 2. What does this tell you?
Burgium has more electrons in its valence than Loonium.