CRQ 11

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Which has the greatest number of protons in its nucleus?

Lead

Which of the following statements is true?

There are only about 100 different kinds of atoms that combine to form all substances.

Nuclei of atoms that make up a newborn baby were made in:

ancient stars

Which of these forces determines the chemical properties of an atom?

electrical force

Solid matter is mostly empty space. The reason solids don't fall through one another is because:

electrical forces

The volume of matter comes mostly from its:

electrons

To change mercury into gold, a pair of protons must be:

neither of these

What makes an element distinct?

number of protons

The weight of matter comes mostly from its:

protons and neutrons

Brownian motion has to do with the:

random motions of atoms and molecules

The factor that determines whether a substance is in the solid, liquid, gaseous, or plasma state is its:

temperature and pressure

There are about as many atoms of air in our lungs at any moment as there are breaths of air in the atmosphere of:

the whole world


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