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Atoms are made of three types of particles.
Proton: Heavy particle, positively charged and found in the nucleus.
Neutron: Heavy particles (approximately the mass of protons), no electric charge and found in the nucleus.
Electron: light particles (about 2000 time lighter than proton), negative electric charge, orbiting the nucleus.
The type of element is defined by the number of protons in the nucleus. This number is also known as the atomic number.For example, Carbon has 6 protons, Silicon has 16 protons and Uranium has 92 protons in its nucleus.
when an atom loses or gains a proton (say, through beta or alpha decay) the nature of the element itself change.
For example, ...
This solution assesses if an atom of an element gains or loses electrons, neutrons, or protons.