Scientists
Families
The Atom
Series
Vocabulary
100
What were ancient scientists working do develop?
The Periodic Table
100
What is the synonym for family?
Group
100
What is an atom?
The basic unit of matter
100
What is the synonym for series?
Periods
100
What is a neutron?
The neutral subatomic particle in an atom.
200
Who is this English Physicist?
Henry Mosley
200
How many groups are there in the periodic table of elements?
18
200
What are the three subatomic particles?
Protons, neutrons, and electrons
200
How many groups are there in the periodic table of elements?
Seven
200
What is the difference between cations and anions?
Cations are positive whilst anions are negative
300
Who was the first scientist that started establishing the periodic table?
Dimitri Mendeleev
300
Name 3 of the families
Halogen/Noble Gas/Chalcogen/Alkali Earth Metals/Alkali Metals/Pnictogens/Crystallogens
300
What is the difference between the atomic mass and the atomic number?
The atomic mass is the number of protons and neutrons together but the atomic number is the number of protons/electrons.
300
How many elements are there in period 1?
2
300
Where is there a higher chance of finding electrons?
Orbitals
400
What did Henry Mosley do?
He showed that the atom’s major properties are based on the atomic number rather than the atomic weight
400
What is the last element in group 1?
Francium
400
What is the neutron equation?
Atomic mass number - atomic number
400
What is the last element in period 5?
Xenium
400
What are isotopes?
Isotopes are atoms with the same atomic number but different number of neutrons
500
What did Mendeleev do that insured the proper placement of new elements in the future?
He anticipated the discovery of more elements and their addition to the periodic table of elements and so he left spaces for them there.
500
All of the noble gasses have the same valence electrons except________.
Helium
500
Which is the biggest atom?
Cesium
500
In which period does the lanthanide belong?
Period 6
500
What is the name for elements that are poor conductors of heat and electricity?
Nonmetals