CRQ 11
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