What is the region of the atom called that is labeled 'A'?
What is the region of the atom called that is labeled 'A'?
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
neutron | arrow_right_alt | particles with an electric charge of +1; positive charge |
electron | arrow_right_alt | electrically neutral particles; no charge |
proton | arrow_right_alt | particles with an electric charge of -1; negative charge |
What does the atomic number tell us?
What is the sum of the number of protons and the number of neutrons called?
What is the region of the atom called that is labeled 'A'?
What is the region of the atom called that is labeled 'B'?
Match the Element with how many protons / electrons it has
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Neon | arrow_right_alt | 2 |
Uranium | arrow_right_alt | 3 |
Zinc | arrow_right_alt | 6 |
Carbon | arrow_right_alt | 10 |
Lithium | arrow_right_alt | 87 |
Helium | arrow_right_alt | 1 |
Francium | arrow_right_alt | 30 |
Hydrogen | arrow_right_alt | 92 |
A newly discovered element X has 125 electrons when it is electrically neutral. How many protons should it have?