Elements
What Element has the Atomic number of 18
What is Argon
Coservation of Mass means mass cannot be created or ________
destroyed
The astronomical process gives orbitals their name
Orbiting planets
Metals and nonmetals are separated by this ____ on the periodic Table
What is Metalloids
What Element is Ar 4s1
What is Potassium
Isotopes have isotopes are part of a family of elements that all have the same number of protons but different _________ neutrons
number of
Hydrogen is the only element without what
A nuetron
If I rip a paper what kind of Properties am I using
What is Physical
What Element has 44.955 for an atomic mass
What is Scandium
Compounds contain at least _____types of elements
2
What charge does a electron have
Negative
If I burn a paper what kind of properties am I using
What is Chemical
Where are the metalloids on the Periodic table Element
What is to the right of the post-transition metals and to the left of the non-metals
A cation is a ______ charged ion
positively
What is at the center of a atom
The nucleus
what kind of Element is ar
What is Nobel Gas
What is the electron configuration for Argon
1s2 2s2 2p6 3s2 3p6
Visible light, radio waves and gamma rays are all_______
electromagnetic radiation
The symbol for protons is
"p"
If you split the element U, you get Ba and ______
What is Kr