proton

«proton» in Mova's school dictionary: A tiny particle with a positive electric charge, found in… — its meaning for a pupil, its sense in the lessons and examples, with 2 sentences of Mova's corpora that use it.

part of speech

noun (a proton, protons)

meaning for a pupil

(science) A tiny particle with a positive electric charge, found in the nucleus (centre) of every atom. tree →

sense in the lessons

In science lessons about atoms, an atom has protons and neutrons in the nucleus and electrons around it. The number of protons decides which element it is: hydrogen has 1, carbon has 6, oxygen has 8, gold has 79. Phrases: «protons, neutrons and electrons», «proton number», «atomic number».

examples

• A hydrogen atom has just one proton. tree →
• Protons have a positive charge. tree →
• The number of protons tells you which element it is. tree →
• Carbon has six protons in its nucleus. tree →
• Protons and neutrons are in the nucleus. tree →
• Scientists smash protons together in the Large Hadron Collider. tree →

note

Countable. Charges: proton +, electron −, neutron 0. Maths in science: atomic number = number of protons; in a neutral atom, protons = electrons. Protons are much heavier than electrons (about 1836 times).

In the corpora

• An atom is made of smaller parts: protons and neutrons in a tiny middle called the nucleus, and electrons around it.
• Elements in the periodic table are in order of the number of protons in their atoms.

Trees and pragmatics

Every meaning and example of «proton» parsed by Mova, each sentence with its dependency tree and frames.