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WorksheetsAtomic Structure
Total questions: 8
Worksheet time: 4mins
Which value of an element is calculated using both the mass and relative abundance of each occurring isotopes of this element?
Atomic number
Atomic mass
Half-Life
Molar volume
Which numerical configuration can be used to get the atomic mass of the elment chlorine?
(34.97 u)(0.7576)+(36.97 u)(0.2424)
(34.97 u)(75.76)+(36.97 u)(0.2424)
(34.97 u)(0.2424)+(36.97 u)(0.7576)
(34.97 u)(24.24)+(36.97 u)(75.76)
The center of an atom is called the
Electron shell
Molecule
Nucleus
Atom
Which element is the simplest and lightest atom with just one proton, one electron and no neutron?
Helium
Calcium
Carbon
Hydrogen
How do you find how many neutrons an atom has?
Subtracting atomic number from mass number
Adding atomic number to mass number
Isotopes have the same number of neutrons and protons.
True
False
What kind of charge does an electron have?
Positive
Negative
Neutral
B and C
The mass of an element is the total number of protons and neutrons in the nucleus of the atom.
True
False
