Period 2, Group 2
Beryllium
Magnesium
Period 3, Group 2
How many valence electrons will atoms in group 2 of the periodic table have?
2
Neutron is _______ charged
What is : uncharged/ neutral
What two particles make up the net charge of an atom nucleus?
What is: protons and neutrons
Period 3, Group 15
Phosphorous
Oxygen
Period 2, Group 16
How many valence electrons will elements in group 16 of the periodic table have?
6
Electrons are _____ charged and have a mass that is ____________ amu.
What is: negatively, 1/2000th
If full, how many electrons can the first three energy levels have all together?
What is: 28 electrons
Period 6, Group 11
Gold
Boron
Period 2, Group 13
How many electron shells will Carbon have?
2
Trends of the characteristics of elements across the periodic table.
What is: periodicity
Which group is the Alkaline Earth Metals in?
What is group 2
Period 4, Group 6
Chromium
Argon
Period 3, Group 18
How many electron shells will Calcium have?
3
The most dense structure in an atom is called _______ and it is made up of ______ and ______.
What is: nucleus, protons, and neutrons
What is the most reactive group of nonmetals?
Halogens/Group 17
Period 4, Group 13
Gallium
Silicon
Period 3, Group 14
How many electron shells will elements in the 3rd period of the periodic table have?
3
The current atomic theory includes the ________ model of electrons.
What is: electron cloud
What do excited electrons emit when they fall back to their ground state?
What is energy/light?