The correct answer is A. Most reactive non metals.
Firstly if some one knows how to read the periodic table he would have no confusion in deciding whether group 7 has metals or non metals. Group 7 contains non metals so basically we can easily cancel out two options of metals.
Secondly group 7 non metals are the most reactive non metals as they need only one electron in order to complete their valence shell and become stable.
Answer:
what is the question. . .
Given below the arrangement of loading on the larger boat by two tug boats.
F₁ = 5 N
F₂ = 4 N
Angle between them θ = 90⁰
Resultant between two vectors, ![F=\sqrt{F_1^2+F_2^2+2F_1F_2cos\theta }](https://tex.z-dn.net/?f=F%3D%5Csqrt%7BF_1%5E2%2BF_2%5E2%2B2F_1F_2cos%5Ctheta%20%7D)
Substituting
![F = \sqrt{5^2+4^2+2*5*4*cos 90} \\ \\ = 6.403 N](https://tex.z-dn.net/?f=F%20%3D%20%5Csqrt%7B5%5E2%2B4%5E2%2B2%2A5%2A4%2Acos%2090%7D%20%5C%5C%20%5C%5C%20%3D%206.403%20N)
So magnitude of the net force on the block = 6.403 N
D. diamond, is the best option..
Answer:
The electron is a subatomic particle, symbol e⁻ or β⁻ , whose electric charge is negative one elementary charge. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure
Explanation:
functions of electrons
and electrons being the negatively charged particles of atom. Together, all of the electrons of an atom create a negative charge that balances the positive charge of the protons in the atomic nucleus