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Experiments performed to reveal the structure of an atom led scientists to conclude that an atom's
the number of protons
neutrons
smaller and contains most of the atom's mass
In a closed system, the total mass remains constant in a chemical reaction*
.3 g
the size of a football stadium
It would become positively charged.
volume is mainly unoccupied
Students measure 2.0g of baking soda and 5.0g of vinegar. They mix them together and watch bubbles form. The mass of the resulting liquid is 6.7g. Based on the law of conservation of mass, what should the mass of the gas that escaped be?
the number of protons
neutrons
smaller and contains most of the atom's mass
In a closed system, the total mass remains constant in a chemical reaction*
.3 g
the size of a football stadium
It would become positively charged.
volume is mainly unoccupied
To find the mass of an atom you add the protons to the ______________ in the nucleus of the atom.
the number of protons
neutrons
smaller and contains most of the atom's mass
In a closed system, the total mass remains constant in a chemical reaction*
.3 g
the size of a football stadium
It would become positively charged.
volume is mainly unoccupied
Which statement best describes the law of conservation of mass?
the number of protons
neutrons
smaller and contains most of the atom's mass
In a closed system, the total mass remains constant in a chemical reaction*
.3 g
the size of a football stadium
It would become positively charged.
volume is mainly unoccupied
Suppose a neutral atom were to lose an electron. What would happen to the atom?
the number of protons
neutrons
smaller and contains most of the atom's mass
In a closed system, the total mass remains constant in a chemical reaction*
.3 g
the size of a football stadium
It would become positively charged.
volume is mainly unoccupied
Compared to the entire atom, the nucleus of the atom is
the number of protons
neutrons
smaller and contains most of the atom's mass
In a closed system, the total mass remains constant in a chemical reaction*
.3 g
the size of a football stadium
It would become positively charged.
volume is mainly unoccupied
If a model were made of an atom with the nucleus the size of a pea, how large would the rest of the atom be?
the number of protons
neutrons
smaller and contains most of the atom's mass
In a closed system, the total mass remains constant in a chemical reaction*
.3 g
the size of a football stadium
It would become positively charged.
volume is mainly unoccupied
Different elements have different kinds of atoms. How can you tell an atom of one element from an atom of another?
the number of protons
neutrons
smaller and contains most of the atom's mass
In a closed system, the total mass remains constant in a chemical reaction*
.3 g
the size of a football stadium
It would become positively charged.
volume is mainly unoccupied
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