in the case of beryllium, a light metal, only the beryllium-9 isotope is stable with its 9 nucleons (i.e. 4 protons and 5 neutrons)
Hope this helps so sorry if it does not help
In the first figure, the surface absorbs all colors except for green light, which is reflected: so, the surface will appear as green to our eyes, because green is the only color which is reflected by that surface.
Similarly, in the second figure, the surface absorbs all colors except for blue, and so the surface will appear blue to our eyes.
In the third figure, the surface absorbs all colors, so it will appear black to our eyes (because no colors are reflected, and black=absence of colors).
In the fourth figure, all colors are reflected: this means the surface will appear white to our eyes (white= sum of all colors).
A. Nebula . Is The Answer !
Answer:
WEAR AND TEAR THEORY
Explanation:
Due to increasing age, the gravity ultimately compressed spine which consequently affect the height. This effect is best explained wear and tear theory. It states that continuing vandalized to cells and body systems over period is just because of effects of aging. This theory is deeply rooted in our mindset, and it's the theory that you might often hear in discussion and in our society.
Answer:
C. Nucleus
Explanation:
The nucleus, formed by a nuclear membrane around a fluid nucleoplasm, is the control center of the cell. Threads of chromatin in the nucleus contain deoxyribonucleic acid (DNA), the genetic material of the cell.
have a good day and here’s a funny comic just for fun! :)
