Subatomic Particles
This subatomic particle is found in the nucleus and has neutral charge.
Neutron
This number located on the periodic table, tells you the number of valence electrons of each element in that column.
Group number
This number on the periodic table stands for the number of energy shells each element in its row has.
Period number
This is the overall charge of the nucleus.
Positive
The "APE" in Ape man stands for:
Atomic #= Protons and Electrons
This subatomic particle is found on energy levels and has a negative charge.
Electron
This group is the most reactive on the periodic table.
Group 1 (alkali metals)
Each energy level contains these subatomic particles.
electrons
The total number of protons and neutrons in an atom of lithium with a mass of 7 is:
7
The number of protons in Sodium (Na) is:
11
This subatomic particle is found in the nucleus, gives the identity of an atom, and has a positive charge.
Proton
This is the only group of elements that are chemically stable by themselves on the periodic table.
Group 8a/18 (noble gasses)
The number of electrons that the first three energy levels can hold, in order, is:
2,8,8
Compared to the electrons, the size of the protons and neutrons in the nucleus is: choose one of the following: smaller, same size, bigger, much bigger
MUCH BIGGER
The number of electrons in an atom of Potassium (K) is:
19
This subatomic particle is found on the outer most energy level, has a negative charge, and is responsible for the reactivity of an element.
valence electron
How many valence electrons does Magnesium (Mg) have?
2
While valence electrons show us the reactivity of an element, the number of energy levels (electron clouds) determines the ____ of an element.
size, mass, how big it is
The number of protons and neutrons combined in an element of Carbon with a mass of 12 is:
12
3
If you combine these two subatomic particles found in the nucleus, you will get the atomic mass.
Protons and neutrons
How many valence electrons does nitrogen have?
5
How many energy levels (orbitals) does the element Magnesium (Mg) have?
3
The number of neutrons in an element of Boron with an atomic mass of 11 is:
6
How many more Protons does neon have than Hydrogen?
9