Pieces of the atom.
(this category first and in order)
(this category first and in order)
This particle has a charge of +1 and a mass of 1 amu.
What is the proton?
How do you calculate the mass of an atom since both protons and neutrons have a mass of +1 amu?
Protons + Neutrons = mass
(I gave up on the question gimmick at this point.)
How do you calculate the charge of an atom since a proton has a charge of +1 and an electron has a charge of -1?
protons - electrons = charge
(Be careful, it is specifically protons - electrons, this number can be negative.)
What was the model of the atom used in the simulation that has a central nucleus and rings around called?
The Bohr model
Chemistry is the study of the ________
Atom
This particle has a charge of -1 and no mass.
What is the electron?
If you have an atom with 8 protons and 7 neutrons what is the mass of this atom?
8 + 7 = 15 amu
If you have 4 protons and 4 electrons, what is the charge on the atom?
4 protons - 4 electrons = charge of 0
Atoms on the periodic table always have a charge of ___?
(this represents the base state of an atom)
0 charge
Every atom belongs to one of the ___________ found on the periodic table of the ______________
(both blanks contain the same word.)
Elements
This particle has no charge but does have a mass of 1 amu
What is the neutron?
If you have an atom with 12 protons that has a total mass of 26 amu, how many neutrons does the atom have?
12 protons + ___neutrons = mass
mass of 26 - 12 protons = 14 neutrons
If you have 20 protons and 22 electrons your charge is?
20 protons - 22 electrons = charge of -2
What turns an atom into an ion?
When protons and electrons are not equal to each other
Or when the atom has either a positive or a negative charge
How do we define the atom?
The atom is the smallest unit of matter that retains the properties of an element.
Where the electrons are located in the atom.
What is the electron cloud?
Energy shells or rings are also acceptable answers
If you have an atom with 13 protons, 15 electrons and 13 neutrons what is the mass of the atom?
electrons do not have mass so...
13 protons + 13 neutrons = 26 amu
If your charge is +3 and you have 15 protons how many electrons do you have?
15 protons - ___electrons = a charge of 3
rearrange to solve
15 - 3 = 12 electrons
Which subatomic particles (piece of the atom) determines the element the atom belongs to?
How many Protons does a Carbon atom have?
(hint: all you need is a periodic table to find the answer, Carbon is the element labeled with a C)
6 protons
Where the proton and neutron are located within an atom
What is the nucleus of the atom?
The center of the atom is also acceptable.
Your atom has a mass of 50, and it has 20 electrons and 20 neutrons, how many Protons does it have?
Electrons do not contribute to mass so...
20 + ___ = 50
50 - 20 = 30 protons
If you have 15 protons and your charge is -3 how many electrons do you have?
15 protons - ___electrons = -3
rearrange to solve
15 - (-3) = 18 electrons
Which subatomic particle (piece of the atom) must be gained or lost to give an atom a charge?
(hint: the element of the atom will never change ever)
since protons and electrons both have a charge, and changing the protons would change the identity of the element.
The electrons will be gained or lost.
2 different Isotopes of the same element will have the same number of ___________ and ____________ but will have a different number of _______________.
Protons and Electrons will be the same. (order doesn't matter) Neutrons will be different.