Groups
This group has metals that are shiny and reactive.
Alkali Metals
The name for rows on the periodic table.
This scientist developed an atomic model that portrayed atoms as solid and unable to change.
Democritus
The number of protons in the isotope Hydrogen-3.
1
The number of electrons that can fit in 4 orbitals.
8
An element is used to make beakers for science that can withstand heat and doesn't break easily. This element is a part of this group.
Boron Group
Groups
This scientist developed an atomic model that portrayed atoms as a dense nucleus surrounded by electrons in fixed orbitals.
The subatomic particle that results in a different mass number for atoms of the same element.
Neutron
A region of space around the nucleus where electrons are likely to be found
Orbital
This group contains the element Magnesium which is found in plants.
Alkali Earth Metals
An important use of Mendeleev's periodic table for unknown elements.
Predicting atomic number/mass & properties
This scientist came up with an atomic model that showed negatively charged electrons orbiting the dense nucleus.
Rutherford
The atomic number of isotope carbon-13.
6
The energy level that has the most energy out of 1, 2, 3, and 4.
4
This group has elements found in pottery and glass.
Carbon Group
The name of the chemsitry teacher who created an informative way to organize the elements on a periodic table
This scientist came up with the atomic model that displayed atoms as a sphere of positive charge with some electrons spread out in it like plumb pudding.
JJ Thompson
The error with this description of nitrogen-15:
7 protons, 8 neutrons, and 8 electrons
There should be 7 electrons. The number of protons equals the number of electrons.
The model that scientist describe as similar to a flock of starlings
Quantum-mechanical model
The human thyroid needs iodine to function. Iodine is a part of this group.
The Halogens
An element on the periodic table is defined by this subatomic particle.
Proton
This scientist developed an atomic model that included electrons orbiting in a cloud around the nucleus.
Schrodinger
The name for the type of molecule made from the isotope H-2 atoms and oxygen.
Heavy Water
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