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Electrons & Protons
Question | Answer | Keep Going! |
---|---|---|
Atoms are small particles that cannot be ______________? | Atoms are small particles that cannot be created, divided, or destroyed. | you're doing great!!! |
What are electrons? | Negatively charged, found in electron clounds, and mass is almost zero. | you're doing great!!! |
What are protons? | Positively charged, found in the nucleus, mass is 1 amu | you're doing great!!! |
What are neutrons? | Have no charge, found in the nucleus, mass is 1 amu | you're doing great!!! |
What two particles make up the nucleus? | Protons and Neutrons | you're doing great!!! |
Is the protons the same as the atomic number? (T or F) | True | you're doing great!!! |
The element Gold (Au) has 79 protons and the atomic mass is 197; How many neutrons are there? | 118 | you're doing great!!! |
Electrons do or do not travel in definite paths. | Electrons do not travel in definite paths. | you're doing great!!! |
To get the number of neutrons, you subtract the mass number from the atomic number? (T or F) | True | you're doing great!!! |
Who stated that electrons can jump between levels? | Bohr | you're doing great!!! |
If there is 56 protons and 81 neutrons, what is the atomic mass? | 137 | you're doing great!!! |
What is a isotope? | An atom that have the same number of protons but have different numbers of neutrons. | you're doing great!!! |
Atoms of an element are not alike. (T or F) | False, atoms of an element are exactly alike. | you're doing great!!! |
Can atoms join with another atom to make a new substance? | Yes | you're doing great!!! |