Structure
Discovery
Ions and the Mole
Isotopes
Average Atomic Mass
100
Protons and neutrons are found here
What is the nucleus?
100
The type of foil was used in Rutherford's experiment
What is gold?
100
The number of moles in 39.0983 g of K
What is 1?
100
Carbon - 14 mass number
What is 14?
100
The molar mass of NaCl? (hundreths place and correct units)
What is 58.44 g/mol?
200
The charge of an electron
What is negative?
200
The scientist who discovered the electron
Who is J.J. Thomson?
200
The number of atoms in 1 mole
What is 6.022 x 1023 ?
200
The equation to find mass number
What is protons + neutrons?
200
The molar mass of Be(NO2)2 (hundredths place with correct units)
What is 101.83 g/mol?
300
The relative mass of a neutron
What is 1?
300
The scientist that proposed that electrons travel in an orbit separated by energy levels.
Who is Bohr?
300
An atom that looses 3 electrons has this charge
What is +3?
300
The number of neutrons in Magnesium-26
What are 14?
300
The average atomic mass of B (with correct units)
What is 10.811 amu?
400
Isotopes have different number of
What is neutrons?
400
The name of the scientist that proposed the idea of an atom.
Who is Democritus?
400
Ions that have a charge of -1
What is have gained an electron?
400
The mass number of an atom with 16 protons 16 electrons and 17 neutrons?
What is 33?
400
Calculate the average atomic mass of bromine. One isotope of bromine has an atomic mass of 78.92amu and a relative abundance of 50.69%. The other major isotope of bromine has an atomic mass of 80.92amu and a relative abundance of 49.31%.
What is 79.91 amu?
500
Ions have different numbers of
What are electrons?
500
Draw the model that was proposed by Earnest Rutherford
500
The number of moles in 38.04 g of H2O
What is 2?
500
The element name of this mass spectrum would most likely be
What is Boron?
500
The element copper has naturally occurring isotopes with mass numbers of 63 and 65.
The relative abundance and atomic masses are:
_____% for mass of 62.93 amu
30.8% for mass of 64.93 amu.
Find the missing percent and average atomic mass
What is 63.6 amu and 69.2%?