Vocab 1
Where the mass of the atom is located.
Nucleus.
The process that produces energy in a star.
Where are electrons located in an atom?
Electron cloud.
There is a negative percent change in a nuclear fusion reaction. What happens to the mass that is "lost?"`
Converted into energy.
Does the number of hours you sleep, affect your performance on an assessment?
Identify the IV, DV, and 3 constants.
IV: hours slept.
DV: assessment grade.
Constants: Bed, diet, activity level, bed time, etc.
Used to identify the name of the element. Found on the periodic table.
Atomic number.
The particle that determines the charge of an atom.
Electrons.
Why are electrons considered when calculating atomic mass.
Their mass is much too small to be calculated- considered 0 amu.
What are the reactants and products in nuclear fusion reaction?
Reactants- 4 hydrogen atomjs & intense heat & pressure.
Products- 1 helium atom, 2 hydrogen atoms & energy.
At dinner, Oscar passed the pepper shaker to his brother by sliding it across the wooden table. Why did the pepper shaker gradually slow down and come to a stop?
The table exerted a force that is opposite to the salt shaker's motion- friction
Calculated by using the number of protons and neutrons in an atom. This number is not on the periodic table.
Atomic mass.
What is a "neutral/stable" particle?
Atoms with a charge of 0 / same number of protons & electrons.
A calcium (Ca) atom has 21 neutrons, 20 protons, 20 electrons, and an average atomic mass of 40.078 amu. What is the mass number of this atom?
41 amu.
1 He atom fuses with 1 Li atom to become an atom of B. (He + Li → B). What are the reactants this fusion reaction?
Helium & lithium.
How does the law of conservation of energy relate to magnets and magnetic fields?
Potential energy is stored in the magnetic field when magnets are moved against the magnetic force. Once it is let go, it converts to kinetic energy
Two or more atoms with the same number of protons, and a different number of neutrons.
Isotopes.
An atom with a charge is known as?
An ion.
How would you write the names of these isotopes to let someone know they are different?
Name of the element, hyphen, then mass number.
1 He atom fuses with 1 Li atom to become an atom of B. (He + Li → B). What are the products this fusion reaction?
Boron.
What is a cell wall, and where is it located?
Provides structural support and protection for a plant cell. Cell walls are located outside the cell membrane of a plant cell.
The particle that does not affect the stability of an atom.
Neutron.
DOUBLE JEOPARDY: What is the name of a positively charged ion and a negatively charged ion?
Positive- cation.
negative- anion.
Carbon has two isotopes: C-12 and C-14. What is the same, and different about those two isotopes?
They have the same number of protons and electrons, but different number of neutrons, leading to a different mass number.
Where does nuclear fusion occur? Why?
In the core of the star. Because intense hat and pressure is needed for fusion to happen.
What is the difference between ligaments and tendons?
Ligaments connect, bone to bone.
Tendons connect muscle to bone.