what is a hypothesis
an educated guess
The number of protons in an atom of an element is its
atomic number
Neutron is _______ charged
uncharged/ neutral
A (n) _____ is a very small particle that is the basic unit of matter.
Atom
What two particles make up the net charge of an atom nucleus?
protons and electrons
Disney
what is the first step
question or proglem
The positively charged particle
A proton
What is a group
Verticle columns on the periodic table
Exum, Minnis, Lackey
The unit used to measure the mass of subatomic particles
Atomic mass unit
Sesame street
What is the last step
report / share your findings
Isotopes of the same element have the same number of protons but different numbers of _________
neutrons
What is a period on the table of elements
horizontal row
Which subatomic particle determines the "identity" of the atom?
atomic number/number of protons
elemets can't be broken down by __________ or ________ means
Chemical or physical
hotwheels
Why do we do research before we make a prediction?
See if someone has already done the experiment, or if the experiment will be dangerous
In an atom, which has the least mass?
A: nucleus B: proton C: neutron D: electron
electron
nonmetals are found on which side of the table
an element with 117 protons is called
tennessine
How many electrons does an oxygen atom have?
8 electrons
cars
What is the independent variable
the part of the experiment that the Scientist changeds.
Describe the difference between atomic number and mass number *Multiple sentence answer*
The atomic number is the number of protons in an atom. The Mass number is the sum of the number of protons and neutrons in an atom
The most dense structure in an atom called _______ is made up of ______ and ______.
What is : nucleus, protons, and neutrons
Which two subatomic particles determine the atomic mass?
Protons and Neutrons. Electrons are too light (relatively) to count towards the atomic mass.
Which determines the identity of an element?
the number of its protons
frito lays
What is the dependent variable
the part of the experiment that is changed by the independent variable
what is the approximate mass of an electron
1/1850 of an AMU
name one of the 2 elements that are liquid at room temperature.
Bromine (Br) and Mercury (Hg)
Gold, Copper, Silver
Noble metals
how many protons does thulium have?
69
Carhart
list all the steps
name 3 famous people named Adam.
typewriter
how many marvel movies are there
27
how many students do I teach
123
Wrexham soccer club owned by Ryan Reynolds