Answer:
give us something else to work with or this is just the best guess
The physical science unit of criminal investigation applies principles and techniques of chemistry, physics, and geology to the identification and comparison of crime scene evidence.
<h3>What is forensics in criminal investigation?</h3>
Forensics science is any of several fields of study involving the collection of physical evidence and its subsequent analysis.
The aim is to use of science and technology in the investigation and establishment of facts or evidence in a court of law.
There are several units involved in forensics science such as the following;
- Biology unit
- Physical science unit
The physical unit of forensics is the unit that applies principles & techniques on chemistry, physics and geology, which are physical science fields, to identify and compare crime scene evidence.
Learn more about forensics at: brainly.com/question/14403044
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Ionic bond is formed due to the transfer of electrons from one atom to another so that all atoms involved in the bond would become stable (with 8 electrons in the outermost level)
Now, for bromine, it has 35 electrons. This means that bromine has 7 valence electrons in the outermost level. Therefore, bromine needs to gain one electron in order to become stable.
Bromine can react with elements from:
group 1: each element in group 1 needs to lose one electron to become stable. Therefore, one bromine atom can form an ionic bond when combined with an atom of an element from group 1 (element in group 1 loses its electron for bromine atom).
group 2: each element in group 2 needs to lose two electrons to become stable. Therefore, two bromine atoms can form ionic bonds when combined with an atom of an element from group 2 (element in group 2 loses two electrons, one for each bromine atom).
group 3: each element in group 3 needs to lose three electrons to become stable. Therefore, three bromine atoms can form ionic bonds when combined with an atom of an element from group 1 (element in group 3 loses three electrons, one for each bromine atom).
Since no choices are given , I cannot tell the exact choice. But the correct one would be the element from either group 1 , 2 or 3.
Answer:
Morganite has weak violet fluorescence. Beryl (/ˈbɛrəl/ BERR-əl) is a mineral composed of beryllium aluminium cyclosilicate with the chemical formula Be3Al2Si6O18.
Formula mass: 537.50 g/mol
Crystal class: Dihexagonal dipyramidal (6/mm...
Ultraviolet fluorescence: None (some fracture f...
Specific gravity: Average 2.76
Explanation:
So Na (sodium) and Ca (calcium) are metals which form ionic bonds by acting as cations. cations are positively charged since they GIVE AWAY electrons to anions when they bond. So A and B are out.
Ne (neon) is a noble gas which (according to octet rule) has 8 electrons already in it's outer orbit. So since that is the most stable form for an atom, neon would not give or take any electrons and destabilize itself.
Cl (chlorine) is a halogen which forms covalent bonds by GAINING one electron to stabilize itself. Cl only has 7 electrons in its outer orbit so it wants 1 more to reach 8, the stable state. So your answer is C. Cl
