atomic structure
If every proton has a charge of (+1e) and every electron has a charge of (-1e), and the letter (e) represents the elementary charge. In normal matter, which of the following charges would not be found in nature.
+2.5e
When an unstable isotope undergoes Alpha Decay, it will give off:
2 protons and 2 neutrons
How many Isotopes of Element 8, known as "Oxygen" are stable?
3
Using the Dynamic Periodic Table, identify how many isotopes of Carbon there are?
3
Using the Dynamic Periodic Table, identify how many isotopes of Potassium there are?
3
if an atom contains 11 electrons and somehow gained another electron. What energy level would the 12 electron be located in>
4
A common isotope of (Fe) has an atomic number of 26 and a mass number of 56. What is the total number of subatomic particles in the nucleus
56
A common Isotope of Carbon has an atomic number of 6 and a mass number of 13. How many neutrons are in an atom of this isotope?
7
A common isotope of Carbon has an atomic number of 6 and a mass number of 13. How many neutrons are in an atom of this isotope.
7
Which of the following is a TRUE statement about atoms?
All atoms of the same elements may have the same number of electrons and protons, but may have a different number of neutrons.
Of the following statements, the one which is ALWAYS TRUE is:
All lithium atoms contain the same number of protons
Particles that are helium nuclei are called:
Alpha particles
The building blocks of matter are?
Atoms and molecules
Predict what would happen if the following isotope underwent β− β − decay: ii. Cesium-137 ® __________+ _____
Barium-138 + -1e
Using the Dynamic Periodic Table, identify which isotopes of Carbon is the most abundant?
Carbon-12
Protons and neutrons in the nucleus are held together by what force?
Electromagnetic force
An atom contains _________ in various energy levels around the nucleus.
Electrons
Which type of radioactive decay doesn't change the atomic number?
Gamma
Using the Dynamic Periodic Table, identify which Isotope of Element 79 known as "Gold" is the most abundant?
Gold-197
Atoms with the same atomic number but different atomic mass are called?
Isotopes
Which of the following statements is a characteristics of an Alpha Particle
It has poor penetrating ability
Which of the following statements is a True characteristic of gamma rays?
It's symbol is y
A subatomic particle with zero charge found in the nucleus of an atom is called a(n)
Neutron
What is it called when two atomic nuclei are combined?
Nucleur fusion
Protons and neutrons are found grouped together in the:__________.
Nucleus
Which of the following statements is a true characteristic of an alpha particle?
Poor penetrating ability
What kind of charge does a Proton have?
Proton
Which of the following is a charged subatomic particle that accounts for nearly half the mass of an atom is the:
Proton
The _____ is one kind of subatomic particle that makes up the atom and carries a positive charge.
Protons
Which of the following statements about two isotopes of the same element is FALSE?
The number of protons might be different between the two isotopes.
The "charge" on a complete atom that has the same number of protons and electrons is equal to:
Zero
Radioactivity that takes the form of high energy electromagnetic waves would be:
gamma radiation
Compared to protons, electrons have:
much smaller mass and opposite charge
What kind of charge does a Neutron have?
no charge
The mass of an atom is determined by the:
protons and neutrons
