Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
The number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table.
- ‘When you move down the periodic table, as the atomic numbers increase, the elements become rarer.’
- ‘Heavy metals are metallic elements that have a high atomic number and are poisonous to living organisms.’
- ‘The higher the atomic number, the more shells and electrons an atom will have.’
- ‘In a neutral atom, the number of electrons is equal to the number of protons, therefore, the atomic number also indicates the number of electrons in an atom.’
- ‘In those cases in which the number of protons changes, the new nucleus has a different atomic number, and it therefore belongs to a different element.’
- ‘We now have data on the properties of 29 new nuclei with atomic numbers between 104 and 118.’
- ‘The existence of an element with an atomic number of 21 was predicted in 1869 by Dmitri Mendeleev.’
- ‘There, elements are arranged according to their atomic number - the number of protons in the nuclei.’
We take a look at several popular, though confusing, punctuation marks.
From Afghanistan to Zimbabwe, discover surprising and intriguing language facts from around the globe.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.