Scientific Notation
Sig Figs
Atomic History
Atomic Structure
Periodic Table Group Names
100
The number 167 in scientific notation
What is 1.67 x 102
100
84076
What is 5
100
This person stated that atoms are hard, indivisible spheres
Who is Dalton
100
Elements emit energy in the form of light when an electron relaxes from this
What is an excited state
100
An element with 30 protons is a member of which group?
What are the transition metals
200
The number 7.94 x 10-3 expanded
What is 0.00794
200
0.00005609
What is 4
200
Rutherford's gold foil experiment concluded these two ideas about the atom.
What is the atom is mostly empty space and the atom contains a hard, dense nucleus
200
A neutral atom has 42 protons. It has this many electrons
What is 42
200
Silicon is a member of this group. A distinct staircase in your periodic table should help you find this.
What are the metalloids
300
The number 8.957 x 104 expanded
What is 89570
300
5600
What is 2
300
J.J. Thompson came up with this clever name for his model of the atom after a British dessert, where electrons are randomly distributed amongst a positive sphere.
What is the Plum Pudding model
300
The definition of an isotope
What is two atoms sharing the same number of protons but different number of neutrons
300
The second group on the periodic table are called these
What are the alkaline earth metals
400
The number 0.000004278 in scientific notation
What is 4.278 x 10-6
400
7.098245 x 106
What is 7
400
The modern model of the atom is described as this. Ant-Man would certainly agree with you, he has seen it!
What is the wave-mechanical model/quantum model
400
An ion has 56 protons and 58 electrons has this overall charge.
What is -2
400
All atoms of this group of elements have a stable octet. Very royal of them.
What are the noble gases
500
The number 1234567890 in scientific notation
What is 1.234567890 x 109
500
1900123780000
What is 9
500
This scientist's model of the atom stated that electrons orbit the nucleus of the atom is well-defined orbits at various energy levels.
Who is Bohr
500
This particle, found in the nucleus, has no charge
What is a neutron
500
Metals in this group have to be kept in oil to avoid reacting violently with the water droplets in the air.
What are the alkaline metals