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When sodium combines with chlorine to form salt, sodium loses an electron and chlorine gains an electron. Each separate atom is now called a what?
valence electrons
its number of protons and neutrons
22
ion
sulfur (S)
the amount of mass per volume something has D= m/v
paper burning
atoms
The building blocks of all matter are...
valence electrons
its number of protons and neutrons
22
ion
sulfur (S)
the amount of mass per volume something has D= m/v
paper burning
atoms
Argon is an element that has an atomic number of 18. It has an atomic mass of 40. How many neutrons are there in Argon?
valence electrons
its number of protons and neutrons
22
ion
sulfur (S)
the amount of mass per volume something has D= m/v
paper burning
atoms
On the periodic table, an element's atomic mass is made of...
valence electrons
its number of protons and neutrons
22
ion
sulfur (S)
the amount of mass per volume something has D= m/v
paper burning
atoms
Which of these is NOT a compound?
valence electrons
its number of protons and neutrons
22
ion
sulfur (S)
the amount of mass per volume something has D= m/v
paper burning
atoms
The electrons in the outermost cloud of an atom that determine whether an atom will combine with another to form a compound are called
valence electrons
its number of protons and neutrons
22
ion
sulfur (S)
the amount of mass per volume something has D= m/v
paper burning
atoms
Density is...
valence electrons
its number of protons and neutrons
22
ion
sulfur (S)
the amount of mass per volume something has D= m/v
paper burning
atoms
Which of these is an example of a chemical change?
valence electrons
its number of protons and neutrons
22
ion
sulfur (S)
the amount of mass per volume something has D= m/v
paper burning
atoms
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