Protons
What charge does a proton have?
Positive
What charge does a neutron have?
None, 0, Neutral
What charge does an electron have?
Negative
Can you get the number of protons that an element from the periodic table?
Yes - atomic number = number of protons
What is Silicon's atomic number?
14
Where is a proton located at in an atom?
Inside the nucleus
Where is a neutron located at in an atom?
Inside the nucleus
Where is a electron located at in an atom?
Outside the nucelus, inside the electron cloud
How many groups are on the periodic table?
18
What is Sodium's atomic mass?
22.99
How do you know how many protons an element has?
It's atomic number on the periodic table.
How do you know how many neutrons an element has?
Atomic mass - atomic number = number of protons
Are electrons located inside the nucleus?
No! They are found in the electron cloud.
How many periods are on the periodic table?
7
How many protons does Tin have?
50
Which element has 47 protons in its nucleus?
Silver
How many neutrons does Carbon (#6) have?
6
How many electrons can the first energy level hold?
2
Where can you find the atomic mass of an element?
The bottom of the element's square on the periodic table.
How many neutrons does Sulfur have?
32-16=16 neutrons
Which element has only 1 proton in its nucleus?
Hydrogen
How many neutrons does Titanium (#22) have?
25
What is a valence electron?
Valence electrons are electrons in the outermost shell of an atom.
How many elements are on the periodic table?
118
How many neutrons does Xenon have?
131-54=77 neutrons