The charges of ions that Sulfur (S), Potassium (K), Boron (B), Iodine (I), and Bromine (Br) are most likely to form are -2, +1, +3, -1, and -1, respectively. This is determined by their positions on the periodic table.
The charge of an ion that a certain atom is most likely to form is dependent on its position on the periodic table. Elements on the left side of the periodic table (like potassium) tend to lose electrons and form positive ions, while elements on the right side (like sulfur, iodine, bromine) tend to gain electrons and form negative ions.
The charge of a sulfur (S) ion is usually -2 because sulfur, being in Group 16, tends to gain two electrons to reach a stable electronic configuration. The charge of a potassium (K) ion is usually +1. This is because potassium, which is in Group 1, usually loses one electron to achieve a stable electron configuration. The charge of a boron (B) ion is usually +3 because boron, being in Group 13, tends to lose three electrons in order to reach stability. The charge of an iodine (I) ion is usually -1 because iodine, which is in Group 17, tends to gain one electron to reach stability. Lastly, the charge of a bromine (Br) ion is usually -1, because bromine, also in Group 17, tends to gain one electron to attain a stable electronic configuration.
#SPJ6
Answer:
Sulfur (S) is
-2
Potassium (K) is +1
Boron (B) is +3
Iodine (I) is -1
Bromine (Br) is -1
Explanation:
a Elliptical, circular
b Circular, elliptical
C Circular, oval
d None of the above
Answer:
A
Explanation:
I don't know how to say how I got it.
Answer:
d
Explanation:
the orbits of the planets in our circular elliptical and circular
A mixture can be separated into pure substances with the utilization of several techniques of physical methods like simple distillation, centrifugation, sedimentation, etc.
Simple distillation may be defined as a type of separation technique that involves the separation of solvent from a solution. This technique is utilized for purifying the liquids that comprise either nonvolatile impurities such as sand, salt, and other very small amounts of particles.
Apart from simple distillation, evaporation is also used to eliminate water or any liquid substance from a mixture. It makes the solution or mixture dry with the absolute absence of water.
The Centrifugation technique is used to separate the particles on the basis of their size, shape, density, viscosity, and rotor speed.
Therefore, with the utilization of separation techniques, one can easily separate a mixture into pure substances.
To learn more about Separation techniques, refer to the link:
#SPJ2
Answer:
mixture can be separated into pure substances by simple distillation
odor
B)
boiling point
C)
melting point
D)
ability to rust
The ability to rust is not a physical property of matter, but a chemical one, reflecting a substance's capacity to react with oxygen to form a new substance.
In the list provided, the ability to rust is NOT a physical property of matter. Physical properties include traits that can be observed or measured without changing the composition of the material. Examples include melting point, boiling point, odor, and density. The ability to rust, however, is a chemical property as it indicates a substance's ability to react with oxygen to form a new substance, which involves a change in composition.
#SPJ3
Explanation:
It is known that formula for area of a sphere is as follows.
A =
=
= 3.14
= (27 + 273.15) K = 300.15 K
T = (77 + 273.15) K = 350.15 K
Formula to calculate the net charge is as follows.
Q =
where, e = emissivity = 0.85
s = stefan-boltzmann constant =
A = surface area
Hence, putting the given values into the above formula as follows.
Q =
=
= 1046.63 W
Therefore, we can conclude that the net flow of energy transferred to the environment in 1 second is 1046.63 W.
Answer:
Number of neutrons = 7
The number of protons = The number of electrons = 5
Explanation:
Atomic number : It is defined as the number of electrons or number of protons present in a neutral atom.
However, when we talk about the atomic number of the ion, it is not equal to the number of electrons as electron can be gained or loosed.
This is why, more appropriately, the number of the protons which are present in the nucleus of the atom is called the atomic number.
Thus, atomic number = 5
Since, it is a neutral atom, The number of protons = The number of electrons = 5
Mass number is the number of the entities present in the nucleus which is the equal to the sum of the number of protons and electrons.
Mass number = Number of protons + Number of neutrons
12 = 5 + Number of neutrons
Number of neutrons = 7