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24 questions
Show answers
- Q1
What charge do electrons have?
negative
positiveneutral30s - Q2Which statement is NOT true?Protons and neutrons have the same charge.Electrons are negativeNeutrons have no chargeProtons are positive30s
- Q3Which energy level are valence electrons on?lowestmiddlehighest30s
- Q4Which statement is true?Neutrons have no mass.Protons have almost no mass.Electrons are so small they have virtually no massProtons, neutrons, and electrons all have about the same mass30s
- Q5The number of protons always matches that element's.....atomic numberbalanced chargemass number30s
- Q6
Which particles are in the atom's nucleus?
neutrons and electronsonly protonselectronsprotons and neutrons30s - Q7The charge of an electron isneutralpositivenegative30s
- Q8Which orbital the electrons are in defines the atom's:atomic massenergy levelelectric charge30s
- Q9Carbon's atomic number is 6. This means that a carbon atom hassix protons in its nucleus.a total of six neutrons and electrons.a total of six protons and neutrons.30s
- Q10An atom’s mass number equals the number ofprotons plus the number of neutronsprotonsneutronsprotons plus the number of electrons30s
- Q11In an atom of Argon, the outer valence shell will have how many electrons?218830s
- Q12Metals are:Brittle, poor conductors, not malleable; often gas or liquid at room temperatureShiny, malleable, good conductor, usually solidThey can conduct, but not very well; solid but brittle and easily broken; can look metallic and shiny30s
- Q13Which element is pictured below?Hydrogen
Calcium
CarbonOxygen30s - Q14Which element is pictured below?OxygenNeonHydrogenCarbon30s
- Q15In order to make the element pictured below stable, what does this atom need?one more electron in the outer shelltwo more electronsan extra proton30s