1
What is in the middle/ center of an atom?
nucleus/ protons and neutrons
In the periodic table what does the whole number mean?
atomic numer
In the periodic table columns going up and down are called _________ and rows going side to side are called __________.
Groups, Periods
What is the atomic number for Oxygen?
8
What conducts electricity better? (metals or nonmetals)
metals
What is the atomic mass of Hydrogen?
1.0079
what does malleable/ ductile mean?
can be bended/ shaped
How many valence electrons do elements need to be stable?
8
How many valence electrons does Group 15 have?
5
This group really likes to bond with other elements
Halogens
I can know how many valence electrons an element has by looking at what _______ it's in.
What group of elements doesn't like to bond?
Noble Gases/ Group 18
Which group of elements is the most reactive?
Alkali Metals/ Group 1
What does "conductive" mean?
they carry/ transfer (heat/ electricity)
Why are valence electrons important?
They are the ones in charge of bonding
Which elements are radioactive and used for nuclear power and electricity?
Actinide Series
Which category of elements is used for electronic devices?
Lanthanide Series
Helium (He) is part of what category of elements?
Noble Gases
Why don't Noble Gases like to bond?
They already have 8 valence electrons and are stable already
What group of elements is usually used for batteries?
Alkali Metals