Answer:
Option B
Explanation:
The correct answer is Option B.
Before Moseley's discovery in 1913, In Mendeleev's periodic table the elements rearranged with increasing atomic mass.
Mendeleev was not able to locate hydrogen atom and late isotopes found violate Mendeleev table. The biggest drawback was that the atomic mass was not regular when moving one element to another.
But Moseley's arranged element in the periodic table with increasing atomic number.
12344
yu j fjfjf hfjfuf jfjjfjfi jfjfifjf fjfikf
The ground is a foundation for many of the things of our lives. It is the foundation for the buildings in our life such as our houses, schools, work, hospital, and so on. It is the foundation for our lives that we often take for granted and it nurtured the trees and nature around us.
Answer:
No acceleration. All of the forces are acting equally on the paper air plane therfore It isn't going to move any where.
Answer:
9.59
Explanation:
Given expression:
2342 - 24521 + 2453x = 1342
Now,
add similar terms on both sides of the expression:
-22179 + 2453x = 1342
So;
Collect like terms;
2453x = 1342 + 22179
2453x = 23521
Now, divide both sides by 2453;
x = 9.59
