Table of Contents
What is the molecular weight of bromine?
79.904 uBromine / Atomic mass
What is the molecular mass of bromine in its elemental form?
79.90u
Bromine
| Atomic Mass | 79.90u |
|---|---|
| Electron Configuration | [Ar]4s23d104p5 |
| Oxidation States | +5, +1, -1 |
| Year Discovered | 1826 |
What kind of ion is Br?
A bromide ion is the negatively charged form (Br−) of the element bromine, a member of the halogens group on the periodic table.
How many ions are in bromine?
Bromine can make ions of -1, +5, and +7. An ion is basically an element with a charge. To become an ion, an element has to gain or loose electrons. If it gains electrons, it receives a negative charge because it then has more electrons than protons.
How many moles is br2?
1 mol O contains 6.022×1023O atoms;its mass is 16.00 g. 1 mol Br contains 6.022×1023Br atoms;its mass is 79.90 g….2.8: The Mole.
| Molecule | Molecular Weight | Mass of 1 Mol of Molecules |
|---|---|---|
| Br2 | 2(79.90) = 159.80 | 159.80 g |
| O2 | 2(16.00) = 32.00 | 32.00 g |
| H2O | 2(1.008) + 16 = 18.02 | 18.02 g |
| HgBr2 | 200.59 + 2(79.90) = 360.39 | 360.39 g |
What is the mass of one bromine atom?
79.904 amu
Bromine has two naturally occurring isotopes (Br-79 and Br-81) and an atomic mass of 79.904 amu.
Is bromine lose or gain electrons?
In order for a bromine atom to become a 1− bromide ion, it would have to gain an additional electron. Below is the Lewis dot structure for a neutral bromine atom, which has seven valence electrons. Below is the Lewis dot structure for a Br− ion, which has eight valence electrons.
Is Br an ionic compound?
There are two ways to recognize ionic compounds. First, compounds between metal and nonmetal elements are usually ionic. For example, CaBr2 contains a metallic element (calcium, a group 2A metal) and a nonmetallic element (bromine, a group 7A nonmetal). Therefore, it is most likely an ionic compound.
What is the mass of bromine 79?
How many electrons will bromine gain or lose when it forms an ion?
For example, the neutral bromine atom, with 35 protons and 35 electrons, can gain one electron to provide it with 36 electrons. This results in an anion with 35 protons, 36 electrons, and a 1− charge. It has the same number of electrons as atoms of the next noble gas, krypton, and is symbolized Br−.
Can bromine form ionic bonds?
The compound formed by lithium and bromine is an ionic compound because the bond formed between lithium and bromine involves the transfer of electrons… See full answer below.
What type of bond is Br2?
Having the same electronegativity of both atoms, both share an equal proportion of charge. The atoms forming a covalent bond having equal electronegativity are nonpolar in nature. Therefore, the Br2 molecule is a nonpolar molecule.