Answer:
Explanation:
Molecular formula can be calculated by finding the ratio of the molecular molar mass to the empirical molar mass, then multiplying the subscripts of the empirical molar mass by that ratio.
The empirical molar mass is 5(12.01) + 4(1.01) = 64.09g
The molecular molar mass is 128.16g
128.16/64.09 = 2
So the molecular formula is
Answer:
Na+ ions diffusing across the membrane through leakage channels the generation of local currents
Explanation:
An action potential occurs when the membrane potential of a specific cell location rapidly rises and falls. There is a voltage difference between the exterior and interior of the cell, called the membrane potential, due the Na+/K+ ATPase pump.
Starting from the resting potential, the action potential starts when the thershold is reached when Na+ ions difusse across the membrane through channels.Then, the interior of the cell becomes positive and the exterior negative.
The K+ channels take place when the repolarization phase stars, letting K+ ions difusse from the inside of the cells to the exterior.
Answer:
The energy harnessed in nuclei is released in nuclear reactions. Fission is the splitting of a heavy nucleus into lighter nuclei and fusion is the combining of nuclei to form a bigger and heavier nucleus. The consequence of fission or fusion is the absorption or release of energy.
Introduction
HALOGENS have 7 electrons in their final shell regardless if the total number of atoms. These 7 electrons would be shared between the 's' and 'p' orbital in the form
ns² np⁵ (the same as the question). Attached is a table that highlights the fact that halogens have the same form in terms of the valence electrons.
<h2>Answer:</h2>
In the periodic table, the elements of the same group and elements of the same column, have similar reactivity because they have a similar configuration in their valence electrons.
There are some factors which determine the chemical properties if an element of the periodic table.
- No. of arrangement of electron in an atom.
- No. of valence electrons.
- Arrangement of electrons.