Periodic Table of Elements Questions
Explore questions in the Periodic Table of Elements category that you can ask Spark.E!
How many electrons does sodium have
How many protons does boron have
Almost all the mass of an atom is located in its
The third energy level can hold how many atoms?
Horizontal row of elements on periodic table
When an electron moves from an excited state to a ground state what is produced?
What are the outermost electrons in an atom called
How many valence electrons does chlorine (Cl) have?
What is the term used to describe 8 electrons in the outermost shell?
What is the name of the elements in groups 3-12?
Where are the lanthanoids and actinoids located on the periodic table?
What is another name for a positive ion?
What is another name of a negative ion?
Who is given credit for the original organization of the periodic table?
Which elements make up the representative elements?
The ability to lose or gain electrons, the number of valence electrons, the number of shells, the atomic size of elements, and the densities of elements.
What represents the number of valence electrons?
Reactive. Alkali metals are the most reactive metals on the periodic table.
Most elements contain fewer than how many shells?
The atomic theory of matter states that all things that have mass and take up space are made of: