Elements
What does Ag stand for? (30 second limit)
Silver
What affects the stability of an atom?
Electrons and protons
What are valance electrons?
The electrons on the outermost orbital.
What does Sb stand for? (20 second limit)
Antimony
Proton + Proton = ?
Unstable
What is a group?
Column - more specifically, classified with elements with similar chemical properties.
What has an atomic mass of 186.21?
Rhenium (Re)
How many electrons are needed to make Ge stable?
32 electrons
What is a period?
Row - more specifically, it contains elements with the same number of orbitals.
What has 2 neutrons?
Helium (He)
If Mn had 36 electrons, how many electrons would need to be added or taken away in order to make it stable?
-11 electrons
How many known elements are on the PTE?
118 known elements
What has 171 neutrons?
Darmstadtium (Ds)
If Pb had 67 electrons, how many electrons would need to be added or taken away in order to make it stable?
+15 eletrons
Where are metals usually found?
On the left side on the PTE