Atomic number
Parts of the Atom
Fill in the Blank
Number of Neutrons
Electrostatics
Elements
100
What is the element with the atomic number of 30?
Zinc
100
The number of electrons is the same as the number of:
Protons
100
Neutron is _______ charged
Uncharged/ neutral
100
Nitrogen
7
100
What does a nucleus contain?
Protons and neutrons
100
How many atoms of carbon are in this molecule?
1
200
How many protons and electrons does this element have? Atomic number: 4
4 protons, 4 electrons
200
The positively charged particle
Proton
200
electrons are _____ charged
Negatively
200
Iron
30
200
True or False? The material that gains electrons becomes negatively charged.
True
200
How much helium does this molecule have?
0
300
How many neutrons does an element with an atomic number of 21?
About 24 (23.956)
300
The smallest unit of an element that can exist either alone or in combination with other such particles of the same or different elements is the _____
Atom
300
Atoms with an unusual amount of neutrons are called _______________
isotopes
300
Xenon
77
300
Are electrons inside or outside the nucleus?
outside
300
How much oxygen is in this molecule?
1
400
What is the atomic mass of a molecule with the atomic number of 85?
210
400
In an atom, which part has the least mass?
Electron
400
The sum of protons and neutrons in the nucleus is the
Atomic mass
400
Strontium
50
400
What part of an atom can move around from one atom to another?
Electrons
400
What element is this?
Hydrogen
500
Uranium-235 has this many neutrons.
What is 143?
500
Which is bigger; the proton or the electron?
Proton
500
The isotope of iodine 130 has _________ more neutrons than atomic iodine.
3 more!
Atomic iodine has 127-53 = 74 neutrons
Iodine 130 has 130-53 = 77 neutrons.
500
Ununpentium
171
500
What is a molecule and how do you recognize one?
Atoms bonded together to make a new substance with unique physical and chemical characteristics.
500
What element is this?
Carbon