an atom that has the same number of
protons (or the same atomic number) as other
atoms of the same element do but that has
a different number of neutrons (and thus a
different atomic mass) (212)
_________ force pulls objects toward one another. (211)
the mass of an atom expressed in
atomic mass units (212)
The __________ force causes objects with like
charges to repel each other. (211)
In 1913, _____ ____, a Danish scientist, studied the
way that atoms react to light. (202)
The _______ atom is hydrogen. (207)
a region around the nucleus of
an atom where electrons are likely to be found (204)
a subatomic particle that has a positive
charge and that is located in the nucleus of an
atom; the number of protons in the nucleus
is the atomic number, which determines the
identity of an element (212)
A _________ atom can break down,
giving off small particles and energy. (209)
in physical science, an atom’s central
region, which is made up of protons and
neutrons (204)
Bohr proposed that electrons move around the nucleus
in definite paths, or ______, called energy levels. (202)
Electrons are the ________ charged particles in
atoms. (206)
Down
The ______ force holds the nucleus together. (211)
the smallest unit of an element that
maintains the properties of that element (204)
If an atom gains or loses an electron, it becomes an
_____. (206)
a unit of mass that describes
the mass of an atom or molecule (212)
There are more than 110 known . (207)
the number of protons in the
nucleus of an atom; the atomic number is the
same for all atoms of an element (212)
the sum of the numbers of
protons and neutrons in the nucleus of an atom (212)
The first scientific theory about atoms was published
by ____ ______ in 1803. (200)
Atoms are made of ______ different
types of particles: protons, neutrons, and electrons. (205)
The _____ force is important in radioactive atoms. (211)
a subatomic particle that has a negative
charge (204)
In 1897, J. J. _______, a British scientist, discovered
that atoms are not the smallest particles. (200)
a subatomic particle that has no charge
and that is located in the nucleus of an atom (212)
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All your puzzles are accessible from your 'My Puzzles' page, which you can access using the navigation bar at the top when you are logged in.
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There is a 'Make Printable' button on the top left of your puzzle that will let you sign up for a plan or purchase a single puzzle.
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Once you publish your puzzle, you can click the print icon or use your browser’s print function.
It looks weird when printed.
First make sure you’ve published your puzzle. See the 'How do I print?' section above for more information.
99% of other printing issues have to do with printer settings. Instead of trying to fiddle with printer settings, which can be time-consuming and frustrating, there are a couple workarounds you can try.
You can try printing from a different browser, since different browsers have different default print settings. Alternately, you can try saving as a PDF (next to the print icon) and print that.
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We invested in building a number of premium features that free sites are unable to offer: the ability to automatically or manually add words to your puzzle, save-as-you-go puzzle editing, the ability to access your puzzles from any computer, an uncluttered and ad-free interface, the ability for friends and colleagues to solve your puzzles online, and quick responsiveness to reported issues.
My Crossword Maker is the lowest-price service we've found that provides these features, and is designed for people who are not satisfied with what free sites are able to provide.
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Not all my words are in my puzzle.
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.
That said, different browsers print in slightly different ways, so you could try using 'print preview' using a different browser (or try the PDF button) to see if you like how that looks better.
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