The other scientist who proposed our current model of the atom known as the electron cloud model.
1913--This scientist theorized the electrons orbit the nucleus at different distances and with different energies. Planetary model
The dense center of the atom made up of protons and neutrons. Where the mass of the atom is located.
Space surrounding the nucleus, filled with electrons in shells (energy levels), where the volume of the atom is located.
This atomic factor is determined by the neutron.
1803--Scientist who determined all matter is made of solid sphere atoms that cannot be divided further
Force between positive and negative charges
The force that holds the nucleus together.
The force that holds the negatively charged electron cloud to the positively charged nucleus.
Atomic model proposed by Rutherford in 1918.
The charge of the nucleus.
1927--ONE of the scientists who determined that electrons are not precisely located but rather in an electron cloud.
Atomic model proposed by Rutherford in 1911.
This atomic factor is determined by the proton.
Atomic model proposed by JJ Thomson.
Verticales
This atomic factor is determined by the electron
Force between to like charges.
Atomic model proposed by Dalton.
1897--This scientist theorized that the atom is made of a positive fluid with tiny negative electrons embedded throughout. Named for a popular British dessert, plum pudding model.
The idea that matter is made up of fundamental particles called atoms.
Atomic model proposed by Schrodinger and Heisenberg.
1911, 1918--Scientist who performed gold foil experiment and discovered the nucleus (1911) and later the proton (1918)
The smallest unit of an element that still has the properties of that element.
The neutral subatomic particle found in the nucleus.
Negatively charged subatomic particle. Outside of the nucleus in the cloud.
Atomic model proposed by Bohr.
The positively charged subatomic particle. Found in the nucleus.
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When you hit the 'Arrange' button, our algorithm will try to arrange all your words on the grid, and will move words around to try to fit the most words.
This will get all the words on the grid about 90% of the time, depending on the word list. For the other 10%, you will get an alert explaining that the words that did not fit were added to the scratchpad.
It prints on two pages.
Big puzzles won’t always print on one page — the clues and grid are the smallest we could make them while keeping them readable for everyone.
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