Some true or false questions?

Question

1. Matter has volume.

2. A pound of cotton and a pound of lead have different densities.

3. Carbon dioxide, water and glucose are all compounds.

4. The atoms in a piece of iron are different from those in a piece of tin.

5. Matter with definite volume, but without a definite shape is a gas.

6. In an atom the number of electrons equals the number of protons.

7. The electrons farthest from the nucleus of an atom are in the lowest energy level.

Answer 1

1. Matter has volume - TRUE, but many constituents of matter such as electrons and quarks do not have volume.

2. A pound of cotton and a pound of lead have different densities - TRUE, unless you could somehow compress the cotton to the density of lead.

3. Carbon dioxide, water and glucose are all compounds - TRUE

4. The atoms in a piece of iron are different from those in a piece of tin - TRUE

5. Matter with definite volume, but without a definite shape is a gas - FALSE; the state of matter with definite volume but not shape is called a "liquid."

6. In an atom the number of electrons equals the number of protons - FALSE; ions are atoms with different numbers of electrons and protons.

7. The electrons farthest from the nucleus of an atom are in the lowest energy level - FALSE; electrons near the nucleus tend to be more tightly bound (that is, they have a lower, or more negative, energy level) than those further away.