Atomic structure

What is the significance of the atomic mass?

• It is the total number of protons in an atom.

• It is the weighted average mass of an element's isotopes, reflecting the relative abundance of each isotope.

• It determines the color of the element in a chemical reaction.

• It is the mass of an atom measured in grams.

Where are electrons located in an atom?

• In the nucleus of the atom.

• In the electron cloud surrounding the nucleus.

• In the protons of the atom.

• In the neutron shell of the atom.

What is the difference between atomic number and mass number?

• The atomic number is the total number of protons and neutrons, while the mass number is the number of protons.

• The atomic number is the number of protons, while the mass number is the total number of protons and neutrons in the nucleus.

• The atomic number is the number of neutrons, while the mass number is the number of protons.

• The atomic number and mass number are the same and represent the total number of particles in the nucleus.

How many protons does Boron have?

• 3 protons

• 5 protons

• 7 protons

• 4 protons

What charge do neutrons have?

• Positive charge

• Negative charge

• No charge (they are neutral)

• Variable charge depending on the environment

What is the atomic number?

• The number of neutrons in an atom

• The number of protons in the nucleus of an atom

• The total number of electrons in an atom

• The mass of an atom in atomic mass units

What is an atom?

• An atom is the smallest particle of matter.

• An atom is a type of molecule.

• An atom is a large structure made of cells.

• An atom is a form of energy.

What is the mass of a proton compared to a neutron?

• Protons are significantly heavier than neutrons.

• Protons and neutrons have approximately the same mass, but protons are slightly lighter.

• Neutrons are lighter than protons.

• Protons have no mass compared to neutrons.

Where are protons located in an atom?

• In the nucleus of an atom.

• In the electron cloud surrounding the nucleus.

• In the outer shell of the atom.

• In the neutron layer of the atom.

What charge do protons have?

• Negative charge

• Neutral charge

• Positive charge

• Variable charge