Answer:
The boiling point is the temperature at which the vapor pressure equals the pressure of gas.
The normal boiling point is the temperature at which the vapor pressure equals one atmosphere
Explanation:
Answer:
:)
Explanation:
Property Nitrogen Bismuth
Atomic radius (pm) 56 143
First Ionization energy (kJ/mol) 1402 703
Common Oxidation state(s) -3 to +5 +3
Ionic radius (pm) 146(-3) 103(+3)
Answer is D. The periodic table rows are arranged by increasing atomic number. The atomic number is decided by how many protons they have.
B. static friction occurs.
Explanation:
When a body is pushed and it does not move, static friction has occurred.
Static friction is a type of friction that keeps a body at rest. It must be overcome before a body at rest can start moving.
- An object in motion experiences a sliding friction.
- Friction is generally defined as the resistance to motion of a body.
- In fluids, it is generally experienced as the viscosity.
- Static friction is the strongest of all the friction.
Learn more:
Friction brainly.com/question/7174363
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Answer:
D. A²⁺
Explanation:
Element from Group 2A -
The element of group 2A are known as the alkaline earth metals ,
The elements of this group are - beryllium (Be) , magnesium (Mg) , calcium (Ca) , strontium (Sr) , barium (Ba) , and radium (Ra).
The valence shell of these elements have two valence electrons and therefore , if the element need to stabilizes itself , it need to lose these two electrons and attain noble gas configuration,
Therefore ,
After losing the two electrons , the element becomes A²⁺.
Hence , the ions are symbolized as A²⁺.
