atomo

What is the relationship between the number of protons and the atomic number of an element?

• The atomic number is the sum of protons and neutrons
• The atomic number is equal to the number of protons
• The atomic number is equal to the number of electrons
• They are unrelated

Which of the following particles is positively charged and found in the nucleus of an atom?

• Photons
• Protons
• Electrons
• Neutrons

What is the primary function of neutrons within the nucleus of an atom?

• To determine the atomic number
• To orbit the nucleus
• To stabilize the nucleus
• To provide positive charge

In which part of the atom are electrons located?

• In the nucleus
• In the neutrons
• In the protons
• In the electron shells

What is the primary charge of an electron?

• Negative
• Neutral
• Variable
• Positive

Which of the following statements about the nucleus is true?

• It contains only protons
• It is where electrons are found
• It is the lightest part of the atom
• It contains protons and neutrons

Which of the following best describes the arrangement of electrons in an atom?

• They are randomly distributed
• They are arranged in layers or shells
• They are fixed in one position
• They are only found in the nucleus

Which atomic model proposed that atoms are solid, indivisible spheres?

• Bohr's Model
• Thomson's Model
• Rutherford's Model
• Dalton's Model

What is the significance of understanding atomic structure in chemistry and physics?

• It is irrelevant to physical sciences
• It forms the basis of all matter
• It only applies to large molecules
• It helps in understanding only chemical reactions

How do electrons contribute to the properties of matter?

• By increasing the atomic number
• By stabilizing the nucleus
• By influencing chemical bonding
• By determining the mass of the atom