Answer:
a
Explanation:
because na + has 11 electrons and has a higher chance to give away one then to gain 7 more. so the answer is a
Answer: Na, S, Cl
Explanation:
Atomic size decreases as one moves from left to right on the periodic table with elements in the same period. This is as a result of the electrons increasing in the outer circle and thus being drawn to the protons in the nucleus which will lead to the outer shell area decreasing.
Sodium (Na) comes before Sulfur (S) which comes before Chlorine (S) so this is the decreasing order as they are all in the same period.
Answer:
U-238
Explanation:
For a given radioisotope, half life can be defined as the time taken for the isotope to decay into one-half of its original amount. Mathematically, this is expressed as:
where k = rate constant for the radioactive decay process
Greater the t1/2 longer will be its stability.
Based on the given data, U-238 has the largest half life and therefore will be best suited for applications mentioned.
Answer:
There's good reason why vitamin D is called “the sunshine vitamin.” When your skin is exposed to sunlight, it makes vitamin D from cholesterol. The sun's ultraviolet B (UVB) rays hit cholesterol in the skin cells, providing the energy for vitamin D synthesis to occur.
Explanation:
Answer:
Tungsten atom has 6 energy level
Explanation:
6 energy levels of tungsten atom
Energy level 1 - 2
Energy level 2 - 8
Energy level 3 - 18
Energy level 4 - 32
Energy level 5 - 12
Energy level 6 - 2
What's a tungsten atom
Is a chemical element with the symbol W and with an atomic number 74.
