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WorksheetsAtoms/Elements Practice for Test
Total questions: 34
Worksheet time: 26mins
An atom with atomic number 6 would have how many protons
6
12
3
cannot be determined
What does the 1.00794 stand for?
Hydrogen
atomic number
atomic mass
atomic explosion
Most of the mass of an atom is found in the ______.
nucleus
proton
electron cloud
isotope
What two particles determine the mass number?
Protons and electrons
Electrons and neutrons
Protons and neutrons
Why is the overall charge of an atom neutral (0)?
They have the same number of protons and neutrons.
They have the same number of protons and electrons.
They have the same number of electrons and neutrons.
Which TWO of the following subatomic particles are inside the nucleus?
protons
electrons
neutrons
There are no subatomic particles in the nucleus of an atom.
The number of which subatomic particle determines the element of an atom (if it's carbon, oxygen, nitrogen, etc.)?
proton
neutron
electron
Subatomic particles do no determine the element of an atom.
How many protons does Nitrogen have?
7
8
14
14.01
Which of the labeled structures is a neutron?
a
b
c
Which of the labeled structures is an electron?
a
b
c
If an element has an atomic number of 11 and a mass number of 23, how many neutrons does it have?
11
12
23
34
The neutral particle in an atom.
proton
neutron
electron
Which of the following particles is NOT found in an atom's nucleus?
proton
neutron
electron
Which of the labeled structures is a proton?
a
b
c
What is the chemical symbol of this element?
79
Au
AU
gold
