Answer: Mg is a cation and Cl is an anion
Explanation: In more detail, if you look at the periodic table, the group number (or columns) of the elements, describe how many valence electrons, or how many electrons the element has available to have a complete an electron shell. Magnesium being in group 2, it has one 2 electrons that will be "donated" to an anion that it bonds with. However, Chlorine being in group 17, (look at the single digit number for double digit groups), it has 7 valence electrons. Knowing that a full electron shell is usually 8 electrons, it needs only one. Since Magnesium has 2 valence electrons to give away, two atoms of Chlorine gas will then bind to the Magnesium, where the 2 Chlorine atoms will take the electrons to fill their shells. Magnesium Chloride, in terms of charges when in ions, [Mg]2+ and 2 [Cl]-1
Answer:
If the charge is positive, subtract that number from the atomic number to get the number of electrons. You have more protons.
...
Determining the number of electrons-
a) 28 Si protons = 14, electrons = 14, neutrons = 14
14
b) 197 Au b p = 79, e = 79, n = 118
79
c) 40 Ar c p = 18, e = 18, n = 22
18
d) 64 Cu d p = 29, e = 29, n = 35
29
e) 39 K e p = 19, e = 19, n = 20
19
f) 133 Cs f p = 55, e = 55, n = 78
55
THIS ANSWER HELPS YOU..
Explanation:
Ok the first one (C) for all of the answers is 6 and for the seconds one (Ca) the answers are 20
Answer:
Root mean squared velocity is different.
Explanation:
Hello!
In this case, since we have a mixture of oxygen and nitrogen at STP, which is defined as a condition whereas T = 298 K and P = 1 atm, we can infer that these gases have the same temperature, pressure, volume and moles but a different root mean squared velocity according to the following formula:
Since they both have a different molar mass (MM), nitrogen (28.02 g/mol) and oxygen (32.02 g/mol), thus we infer that nitrogen would have a higher root mean squared velocity as its molar mass is less than that of oxygen.
Best regards!
If a high Crimson Tide player bumped into a Chicago Bear he would get whipped