Answer:
The number of energy levels filled in an atom is determined by the number of orbitals.
Explanation:
The highest numbers of the electrons in a given energy level relies on the presence of number of orbitals. In one orbital it contains two electrons. Electron that are present in the outer energy level of atom are known as the valence electrons. Which remains as the determining factor of the reactivity of the element. Lights are being emitted when an electron comes from higher state to the lower state.
The correct answer is option A. Luster
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Answer:
Cumulative effect of two or more force can be found using Vector sum of all forces
Explanation:
Force is a vector quantity and in order to find the resultant of two or more forces we have to use the concept of vector addition
here we know that vector addition rule is given as
here we know that
= angle between two forces
so using this equation we can find the cumulative effect of two forces which are inclined at an angle with respect to each other
B) boiling point, volume
C) flammability, volume
D) melting point, reactivity with water
Plz answer this question quickly, it’s really important
I believe the correct answer is D. melting point, reactivity with water.