Show:
protons, neutrons, electrons
groups
atomic mass and atomic number
atomic structure
isotopes
100
Number of protons in silicon-29
What is 14.
100
the most reactive group
What are alkali metals?
100
The mass of oxygen-16
What is 16 amu?
100
location of electrons in Bohr model
What is energy level (or shell)? **cloud is not right for Bohr**
100
all isotopes of the same element have this in common
What is same number of protons?
200
Number of neutrons in silicon-29
What is 15. (29 - 14 = 15)
200
the least reactive group
What are noble gases?
200
mass is the number of ___________ plus __________
What is protons plus neutrons?
200
the reason Rutherford assumed was why most of the particles passed through the foil
What is atoms are mostly empty space?
200
all isotopes of the same element have this different
What is different numbers of neutrons?
300
Number of electrons in silicon-29
What is 14.
300
The group (name, not column) that magnesium is in.
What is alkaline earth metals?
300
atomic number is number of ________________
What is protons?
300
The reason Rutherford thought that some of the particles bounced back
What is concentration of positive charges (or nucleus)?
300
mass of most abundant isotope if the weighted mass is 22.990 amu
What is 23 amu?
400
Particles located in the nucleus
What are protons and neutrons?
400
The element in period 2, group 13.
What is boron?
400
The mass of an element that has 20 protons, 20 neutrons, and 20 electrons.
What is 40 amu?
400
discovery that Thomson made that earned him a Nobel prize
What is the electron?
400
the value indicated by the number at the top left in isotope notation
What is mass number?
500
These atomic particles are not in the nucleus.
What is the electron.
500
the group that forms salts
What is halogens?
500
The number of electrons if the atomic number is 19 and the mass number is 39.
What is 19?
500
location of electrons in current theory (wave model)
What is electron cloud?
500
the value indicated at the bottom left for isotope notation
What is atomic number?