The maximum number of electrons that can occupy a shell of number n is given by the formula ___ . | Card: 1 / 30 |
True or False: The mass of an electron is approximately equal to 1/1840 times the mass of a neutron. | Card: 3 / 30 |
False. The mass of an electron is approximately 1/1840 times the mass of a proton, not a neutron. | Card: 4 / 30 |
Riddle: I am found in the center of an atom, made of protons and neutrons, I am very small yet hold great power. What am I? | Card: 7 / 30 |
Fill in the blank: The total number of nucleons in the nucleus is called the ___ of the element. | Card: 11 / 30 |
The size of an atom is determined by the radius of the shell of its outermost electron. | Card: 14 / 30 |
Riddle: I am a particle with no charge, yet I am essential to the nucleus. Without me, the atom would be incomplete. What am I? | Card: 15 / 30 |
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Stable isotopes have equal neutrons and protons.
| Card: 18 / 30 |
Riddle: I am an element's twin, with the same number of protons, but my neutrons differ. What am I? | Card: 19 / 30 |
The number of nucleons in isobars is represented by ___ and their atomic number is represented by ___. | Card: 25 / 30 |
What are the three types of radiation emitted during radioactive decay, and how can they be distinguished? | Card: 27 / 30 |
Three types of radiation are α, β, γ.
| Card: 28 / 30 |














