Atoms Components
Where are protons located?
nucleus
What is the mass of an atom due to?
number of protons and neutrons
How do we calculate the number of neutrons?
Mass - protons
What are isotopes?
Isotopes are members of an element family and shares number of protons but have different numbers of neutrons
Which subatomic particle is responsible for forming compounds?
electrons
Where are neutrons located?
nucleus
How do we know the number of protons?
Read the periodic table
How do we calculate the number of neutrons in an atom?
mass - protons
Is it possible to have 2 different atoms with the same number of protons? Explain
it is NOT possible that 2 different atoms have the same number of protons because each atom is UNIVOCALLY identified by the number of protons. If 2 atoms share the number of protons, then they are the same element / atom
How can I have a number of protons different from the number of electrons?
if dealing with ions, which are atoms that have either lost or gained electrons
What are the names of the 3 subatomic particles that make up atoms?
protons, neutrons, and electrons
What is the same for every isotope in a family?
number of protons
Which ion has a charge of +2 and 23 electrons?
25 protons = Mn
Is it possible to have 2 different atoms with the same number of neutrons? Explain
Yes, it is possible that 2 different atoms have the same number of neutrons because the number of neutrons is found by subtracting the number of protons from the mass, and there could be combinations of mass and protons that give the same answer:
15-12 = 3
7- 4 = 3
21 - 18 = 3
Which subatomic particle is responsible for identifying an atom?
protons
What is different for every isotope in a family?
number of neutrons
Which ion has a charge of -3 and 14 electrons?
11 protons = sodium
Why do we have decimals in the mass of an atom?
because the mass we read in the periodic table is the average of the masses of each isotope