Ions
What needs to happen for an Ion to form?
Mass Number=
What is Protons + Neutrons?
The atom is made up of 3 subatomic particles called
What are protons, neutrons, and electrons?
Isotopes are atoms of the same element that have different
a. numbers of protons. b. number of neutrons. c. numbers of electrons.
What is B. different number of neutrons?
What are two reasons that an atom might decay?
To many protons or neutrons, there is to much energy in the nucleus
An Ion is negative when it has more _____ than _____.
Electrons than protons
A changing proton number results in
What is a new element?
Which element has 3 protons 3 electrons and 4 neutrons?
Lithium.
Chlorine has atomic number 17 and mass number 35. How many protons, neutrons, and electrons does it have?
What is 17 protons, 17 electrons, 18 neutrons?
In this type of decay neutrons change into protons
Beta Decay
What is the charge of an atom with 24 protons, 24 neutrons, and 26 electrons?
What is -2?
What on the periodic table equals the number of protons in an atom's nucleus?
What is Atomic Number?
Most of the mass of an atom is located
What is inside of the nucleus?
Why can't you change the protons to make an isotope?
Because it will change the element.
In this type of decay there is to much energy in the nucleus.
Gamma Decay
Negative ions ______ electrons while positive ______ electrons.
positive ions LOSE, while negative ions GAIN
In the isotope notation Silicon-28, the number 28 represents the
What is the atomic mass number?
The space between the nucleus and the outer boundary of an atom is filled with mostly
What is empty space?
The listed relative atomic mass on the periodic table is closest to
What is the mass number of that element's most abundant isotope?
This type of decay is used in smoke alarms
Alpha Decay
Why can you never change the amount of protons in an ion?
It will change the element
What are the mass of the three subatomic particles?
What is 1 amu for protons and neutrons and 0 amu for electrons?
The region outside the nucleus where an electron can most probably be found is the
What is electron cloud?
What is the difference between carbon-12 and carbon-14?
Carbon 14 has 2 more neutrons?
This type of decay changes the atomic number by 2 and the mass number by 4, which type of decay is this, and why does this happen.
Alpha decay, this happens because the atom loses 2 protons and 2 neutrons, making the atomic number decrease by 2 and the mass decreasing by 4