Topic 1
What is the periodic table
tabular array of the chemical elements organized by atomic number, from the element
what is a group
A group is how the periodic table is arranged by what is the atomic number
How do we classify natter
By the substance or mixture
What is the law of Conservation
the amount of matter stays the same, even when matter changes form.
What are the parts of an atom
protons, electrons, and neutrons
Who invented it
Dmitri Mendeleev
How is the periodic table organnized
rows (called periods) and columns (called groups) according to increasing atomic number.
How do you balance equations
Same amount of each element on each side
What is energy
The force that causes things to move
What is a quark
elementary particle and a fundamental constituent of matter
How is it organized
the elements are arranged in order of increasing atomic number in rows known as periods and columns known as groups
What is an element
What are the four states of matter
Solid, liquid, gas, and plasma
What is potential energy
The stored energy in an object due to its position, properties, and forces acting on it
what is mass number
Total amount of neutrons in an atom
How many elements are they
118
What is a electron
an elementary particle that has a negative charge of electricity and travels around the nucleus of an atom
Can matter be created or destroyed
No
What is kinetic energy
the energy of motion, observable as the movement of an object or subatomic particle
What is an electron cloud
the area around an atom's nucleus where electrons are most likely to be found
how many rows are in the periodic table
Seven
What the horizontal rows called
Periods
Name two pure substances
gold, copper, oxygen, chlorine, and diamond
How do free energy machines work
spinning electromagnetic motors.
What parts do we find in the nucleus
nuclear envelope, nuclear lamina, nucleolus, chromosomes, nucleoplasm