To calculate the atomic mass of a single atom of an element, add up the mass of protons and neutrons. Example: Find the atomic mass of an isotope of carbon that has 7 neutrons. You can see from the periodic table that carbon has an atomic number of 6, which is its number of protons.
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The weight of a bowling ball is 6.61 pounds.
Complete Question
Despite the destruction from Hurricane Katrina in Sept 2005,the lowest pressure for a hurricane in the Atlantic Ocean was measured several weeks after Katrina. Hurricane Wilma registered at atmospheric pressure of 88.2 kPa on Oct 19, 2005,about 2 kPa lower than Hurricane Katrinia. What was the difference between the two hurricanes in:
millimeters of Hg? ___ mm Hg
atmospheres? ___ atm
millibars? ___ mb
Answer:
The difference in pressure in mm of Hg is
The difference in pressure in atm is
The difference in pressure in millibar is
Explanation:
From the question we are told that
The pressure of Hurricane Wilma is
The difference is pressure is
Generally
The pressure difference in mm Hg is mathematically evaluated as
Substituting the value
The pressure difference in atm is
The pressure in millibars is
Answer:
B. Na and Li
Explanation:
Only lithium and Sodium will have similar properties based on their groupings in the periodic table.
The periodic table of elements shows the arrangement of elements based on their atomic number.
- As general rule, elements in the same group on the periodic table will have the same chemical properties
- This is because they have the same number of valence electrons.
- Valency of an atom determines the chemical properties of such atom.
Answer:1
Explanation:i hope u have a wonderful night and stay safe