Subatomic Particles
This particle has a positive charge and is found in the nucleus.
What is a proton?
This model shows electrons arranged in energy levels around the nucleus.
What is the Bohr model?
This element has the symbol Sg.
What is Seaborgium?
These atoms have the same number of protons but different numbers of neutrons.
What are isotopes?
This type of decay emits a particle with 2 protons and 2 neutrons.
What is alpha decay?
This subatomic particle has no charge but adds mass to the atom.
What is a neutron?
A student places 10 electrons in the first shell. Explain the error.
What is “the first shell can only hold 2 electrons”?
This element has an atomic number of 67 and an atomic mass of 165.
What is Holmium?
An isotope of Carbon has 6 protons and a mass of 14. It has this many neutrons.
What is 8?
This type of decay releases a positron.
What is beta decay?
This particle has almost no mass and orbits the nucleus.
What is an electron?
If an atom has 11 electrons, this is how many go in the second shell (energy level).
What is 8?
This element has 6 protons.
What is carbon?
This part of the isotope stays the same, keeping it the same element.
What is the number of protons?
This type of decay releases energy only and does not change the element.
What is gamma decay?
This number on the periodic table tells you how many protons an element has
What is the atomic number?
This is what you call the state when electrons are in the lowest possible energy levels.
What is the ground state?
An atom has 11 electrons in a neutral state. Name the element.
What is sodium?
Two atoms each have 17 protons, but one has 18 neutrons and the other has 20 neutrons.
Explain why they are both chlorine, but not the same isotope.
What is “they have the same number of protons, so they are both chlorine, but different numbers of neutrons, so they have different masses and are different isotopes”?
When alpha decay happens, the mass number changes by this amount.
What is 4?
This quantity is found by subtracting the atomic number from the mass number.
What are the neutrons?
This determines the color of light released by an atom.
What is the amount of energy released or the energy level of the atom?
This element has 23 neutrons based on the periodic table.
What is Scandium?
A student claims that an atom with 12 protons and 14 neutrons is “a different element” from an atom with 12 protons and 12 neutrons.”
Explain why the student is incorrect and identify the difference.
What is “the number of protons determines the element, so both atoms are magnesium; only their number of neutrons (and mass) is different, making them different isotopes”?
Explain what happens to the atomic number and mass number during beta decay.
What is “atomic # increases by 1; mass # stays the same”?