Rubidium
Bromine has 35 protons and 35 electrons (if it is neutral). Rubidium has 37 protons and 37 electrons (if it is neutral as well). The atomic number is equivalent to the number of protons in an atom. You can easily solve this problem by looking at your periodic table, finding Bromine (Br) and then moving 2 atoms along the chart. There you will find Rubidium.
Rubidium.
When looking at potassium and bromine, it would seem that with more electrons occupying more orbitals, bromine would be larger. However, in addition to those additional electrons, bromine also has additional protons. These protons in the nucleus pull on all of bromine's electrons with more strength than the nucleus of potassium, and the stronger pull offsets any size gained by adding electrons. In short, bromine's nucleus pulls harder.
anions have more electrons than protons
Calcium. Calcium has 20 protons, sulfur has 16, and bromine has 35.
The element bromine has an atomic number of 35. This means that each atom contains 35 protons, and the requirement for electrical neutrality in an atom means that the atom also contains 35 electrons. A bromide ion contains one more electrons than a bromine atom: 36.
Bromine is a larger atom with 35 protons, while fluorine is smaller with 9 protons. Bromine is a darker, reddish-brown liquid at room temperature, while fluorine is a pale yellow gas. Bromine is less reactive than fluorine due to its larger size.
potassium
An ion with a negative charge has more electrons than protons. This means that the number of electrons exceeds the number of protons in the atom, giving it a net negative charge.
An ion that has more electrons than protons has a negative charge.
That is called a neutral atom, because it has no electric charge. If the atom has an electric charge (i.e., it has more protons than electrons, or more electrons than protons), it is called an ion.That is called a neutral atom, because it has no electric charge. If the atom has an electric charge (i.e., it has more protons than electrons, or more electrons than protons), it is called an ion.That is called a neutral atom, because it has no electric charge. If the atom has an electric charge (i.e., it has more protons than electrons, or more electrons than protons), it is called an ion.That is called a neutral atom, because it has no electric charge. If the atom has an electric charge (i.e., it has more protons than electrons, or more electrons than protons), it is called an ion.
An atom with more protons than electrons is a cation.