Structure of the Atom
Smaller
Particles
of Matter
Masses of Atoms
The Periodic Table
Elements
100
Negativley charged particles that move around the nucleus of an atom is
What is electron
100
Protons and neutrons are made up of smaller particles
What is Quarks
100
How many natural occurring isotopes are in Boron
What is 2
100
What does periodic mean
What is repeated in a pattern
100
The vertical columns in the periodic table are called
What is Groups
200
The number of protons in its nucleus is called
What is Atomic number
200
How many quarks are there
What is 6
200
An atom is the sum of the number of protons and neutrons in the nucleus of an atom is called ________
What is Mass number
200
What uses the symbol of the element and dots to represent the electrons in the outer energy level?
What is dot diagram
200
The atomic number increases from _________ to __________
What is left to right
300
One of the earliest models of an atom was developed by...
What is Niels Bohr
300
About ___________________ of a percent the proton collisions yielded evidence of a sixth quark
What is one-billionth
300
__________________ is the average mass of the mixture of its isotopes
What is average atomic mass
300
What does each box in the periodic table contain the _____________, __________________, ____________, and ________________________
What is atomic number, chemical symbol, name, and average atomic mass
300
What is the chemical symbol and atomic number for Lead
What is Pb 82
400
The mass of an electron is about __________________ the mass of a proton
What is 1/2,000
400
Electric and magnetic fields are used to _____________, ______________, then _____________ fast moving protons. (should be in a certain order)
What is accelerate, focus, and collide
400
Atoms of the same element that have different numbers of neutrons are called
What is isotopes
400
The horizontal rows of elements in the periodic table are called
What is periods
400
What is the element of Pm 61
What is Promethium
500
The diameter of a nucleus is about ________________ the diameter of the electron cloud
What is 1/100,000
500
A machine that can generate the tremendous forces that are required to study quarks
What is Tevatron
500
How do you calculate the number of neutrons
What is number of neutrons = mass number - atomic number
500
The elements next to the stair-step line are called
What is metalloids
500
What is the atomic number and chemical symbol for Zirconium
What is Zr 40