Subatomic Particles and Ions

This video tutorial explains subatomic particles, including protons, neutrons, and electrons, and their roles in atomic structure. It covers how to read the periodic table, focusing on atomic and mass numbers, using carbon and oxygen as examples. The video differentiates between neutral atoms, ions, and isotopes, providing examples of each, such as calcium ions and carbon isotopes. It emphasizes the importance of protons in defining elements and explains how changes in electrons lead to ion formation.

Which subatomic particle is positively charged?

• Photon

• Neutron

• Electron

• Proton

What does the atomic number of an element represent?

• Number of neutrons

• Number of protons

• Mass number

• Number of electrons

How do you calculate the number of neutrons in an atom?

• Add atomic number and mass number

• Divide mass number by atomic number

• Subtract atomic number from mass number

• Multiply atomic number by mass number

In a neutral atom, what is the relationship between protons and electrons?

• Protons are double the electrons

• Protons are unrelated to electrons

• Protons are equal to electrons

• Protons are half the electrons

What is an ion?

• An atom with a different mass number

• An atom with a different number of neutrons

• An atom with equal protons and electrons

• An electrically charged atom

What distinguishes isotopes of the same element?

• Different number of electrons

• Different mass numbers

• Different chemical properties

• Different number of protons

How many neutrons does carbon-14 have?

• 6

• 14

• 7

• 8

What happens to the number of electrons in a calcium ion with a +2 charge?

• It loses two electrons

• It gains two electrons

• It gains two protons

• It loses two protons

If an oxygen ion has a -2 charge, how many electrons does it have?

• 12

• 10

• 8

• 6

What is the charge of an ion with 8 protons and 10 electrons?

• 0

• -2

• +2

• +1