Protons
Neutrons
Electrons
Atoms
Potpourri
100
What is the charge of a proton?
positive
100
What is the charge on a neutron?
Neutral means no charge.
100
What is the charge on the electron?
negative
100
What is the basic building block of matter?
atom
100
Who was the first person to describe the atom?
Democritus
200
Where is a proton located in the atom?
Nucleus
200
Where are neutrons located in the atom?
Nucleus
200
Where are electrons located in the atom?
electron cloud
200
What do we call a material made up of only the same atoms? (hint: all gold atoms)
an element
200
Using a periodic table, what element has the atomic number 2?
Helium
300
What is the weight of a proton?
1 amu
300
What is the weight of a proton?
1 amu
300
What is the weight of an electron?
1/2000 amu
300
If an atom has 3 protons, 3 neutrons, and 3 electrons, the atom is said to be...
neutral
300
Using the periodic table, what element has 10 protons?
Neon
400
How many protons are in the oxygen atom?
8 protons
400
True or False: The number of neutrons in an atom can make it stable or unstable.
True
400
How many electrons can fit in the first energy level of an atom?
two
400
If an atom has 7 protons, 7 neutrons, and 10 electrons, the atom is said to be...
an ion (-3 charge)
400
Using the periodic table, which element has the least number of protons?
Hydrogen
500
Why is the number of protons important in an atom?
The number of protons are unique to each different atom. They give the atom it's name.
500
How many neutrons are represented in this Bohr model of the Oxygen atom?
8 neutrons
500
How many electrons are in the second energy level of this Bohr model?
six
500
If an atom has 3 protons, 4 neutrons, and 3 electrons, what is the atom's atomic mass?
3 protons + 4 neutrons = 7
500
How many elements are listed on the Periodic Table?
118