This particle has no charge
What is a neutron
vertical columns on the periodic table
What are groups?
This tells us the number of protons (and electrons) an atom of an element has?
Atomic Number
The number of protons in a Helium Atom
What is 2?
This element is the most electronegative
What is Flourine (F)?
The location of protons and neutrons.
What is inside the nucleus?
horizontal rows on the periodic table
What are periods?
The number of protons in an atom of calcium.
What is 20?
These elements are not good conductors of heat or electricity
What are non metals?
The amount of energy needed to remove an electron.
What is ionization energy?
These are responsible for reactivity and bonding
What are valence electrons
The specific name of group 17/7A
What are the halogens?
The majority of the elements on the periodic table are this.
What are metals?
Silicon is this type of element?
Metalloid
List the following elements from smallest to largest atom Al, Nb, O, Lu, Fe
O, Al, Fe, Nb, Lu
The location of the electrons of an atom with 17 electrons (give the number in each orbital)
What are 2, 8, 7 electrons
The name of group 2/ 2A
What are the alkaline earth metals
This tells us the number of shells an atom has.
What are periods?
The number of neutrons in an atom of the most common isotope of Mercury
What is 121.
(201-80=121)
List these elements from most to least electronegative Kr, O, Y, Cs, P
O, P, Y, Cs, Kr
The mass number of this atom of oxygen
What is 16?
The number of valence electrons in a lead atom
What is 4?
Elements in this "group" are almost all radioactive
What are the actinides?
The number of Protons, neutrons and electrons in an atom of silver-108
What is 47 protons, 47 electrons, 61 neutrons
Why do we see the trend of atomic radius following the pattern it does on the periodic table?
1) As we go down the periodic table we add orbitals and size
2) As we go left to right we add protons/nuclear charge which pulls electrons closer and makes the atom smaller