Basic Atomic Structures
Source: Langhans and various educators
Good review
Source: Langhans and various educators
1. 1. The atomic number tells the number of positively charged ________ in the nucleus of an atom. The atom is __________ because this is also the number of __________ charged __________ in the atom.
2. The mass number tells the total number of________ and _________ in the nucleus of an atom. These particles collectively are called ___________ since both are located in the nucleus.
Use the diagram to complete the next 4 questions:
3. Draw five protons in the nucleus of the atom. Label them with their charge.
4. Draw six neutrons in the nucleus of the atom.
5. Draw two electrons in the first energy level and label them with their charge.
6. Draw three electrons in the second energy level and label them with their charge.
Source: sciencespot.net, Langhans and various educators
