Answer:
The answer is silicon, oxygen, and one or more metal elements
Explanation:
Answer: The correct answer is -
Eubacteria and Archaebacteria.
As per the information in the question, scientist finds a new life form and determines that it contains no nuclei.
This indicates that the new life form is a prokaryote.
Prokaryotes are the organisms that are devoid of nucleus and do not contain any membrane bound subcellular compartments (cell organelles).
Archaebacteria (primitive forms of bacteria) and Eubacteria are the two groups of prokaryotes.
Thus, Eubacteria and Archaebacteria is the right answer.
A bacterium called Vibrio cholerae causes cholera infection. The deadly effects of the disease are the result of a toxin the bacteria produces in the small intestine. The toxin causes the body to secrete enormous amounts of water, leading to diarrhea and a rapid loss of fluids and salts (electrolytes).
1. 118
2. It consists of the elements oxygen (O), sulfur (S), selenium (Se), tellurium (Te), and polonium (Po). synthetic elementlivermorium (Lv)
3.same number of valence electrons
4. 8 because it has full valence shell
5. Halogens are the compounds found in group 17 of the periodic table. They are all incredibly electronegative, meaning that they are very willing to take electrons from other atoms. Fluorine, for example, is the only element that can take electrons away from oxygen.
Alkali metals, on the other hand, are just the opposite: Their electronegativity is very low, meaning that they are very willing to give away electrons
Both groups are highly reactive.
6. atomic number is the number of protons
7. a Columb of elements in a periodic table
8. a row of elements in the periodic table
