Chemistry chapter 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| The neutral particle found within an atom is the ? | Neutron
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| The sum of the protons and neutrons in the nucleus of an atom is called the? | Mass number
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| The space around the nucleus where the atom's electrons are found is called the ? | Electron cloud
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| The positively charged central core of an atom is what? | Nucleus
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| A system used to represent the valence electrons around the chemical symbol of an element is the ? | Lewis dot structure
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| The positively charged subatomic particle is an ? | proton
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| The range of all forms of radiant energy is given the name ? | Electromagnetic spectrum
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| The region of space where electrons of a certain energy move about the nucleus of an atom is ? | Orbital
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| The smallest particle of which matter consists is an ? | Element
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| Found in the outer energy level of an atom is what? | Atom
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| The number of protons in the nucleus of an atom of an element is the what of the element? | atomic
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| A negatively charged particle found in all atoms is the ? | Electron
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| Questions | Answers
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| Name and describe the present day model of the atom? | The present day model of the atom is called the electron cloud.
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| What charges do a proton, neutron and electron have? | +1, Zero, and -1
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| Which particles are located in the nucleus? | The proton and neutron
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| Which particle contribute the most to an atom's mass? | The proton and neutron.
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| What is an isotope? | Each different version of an element is called an isotope.
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| What is an ion? | When an atom has more electron than protons, or few electrons than protons. It will have a charge, that is an ion.
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| Can you change the number of protons in an atom and have the same element? |
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To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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