Answer:
Hg, Tl, Pb, Bi.
Explanation:
The elements that are all in the same period are: Hg, Tl, Pb, Bi.
Kindly, find the attached image that show that all elements are in period 6.
Rb, Sr, La, Zr
:
All are in period 5 except La is in period 6.
Al, Ga, Si, P
:
All are in period 3 except Ga is in period 4.
N, O, Cl, Br:
N, and O are in period 2. While Cl is in period 3 and Br is in period 4.
The answer is A, when these particles are heated they tend to speed up.
Mass<span> is the amount of matter in an object. Move to a different planet and an object's weight will change, but its </span>mass<span> will be the same. </span>
Answer:
X3Y2
Explanation:
To represent the chemical formula of the binary compound, the valencies of both elements need to be exchanged.
Valency is the combining power of elements, ions or radicals. It is the value that shows how an element tend to combine with other elements.
In this particular question, the valence of the element X is +2, this means when it enters into chemical combination, it goes in with the power of positive 2. Same goes for the element Y, when it goes into chemical combination, it is expected that it goes in with the negative power of 3.
To completely write the chemical formula of the compound formed from the combination of both, we simply exchange the valency as said above. It must be noted that while the less electronegative element carry a positive or less negative charge , the more electronegative element will carry a negative or more negative charge.
We write the less electronegative element before the more electronegative element while writing the formula of the compound
Answer:
See explanation
Explanation:
Recall that;
Speed = Distance/time
Distance = Speed * time
Speed = 200 km/h
Time = 4 hours
Distance = 200 km/h * 4 hours = 800 kilometres
Displacement has to do with distance covered in a specified direction, in this case, the direction is towards Zambales.
Hence, the displacement is 800 kilometres towards Zambales.