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3 years ago

Where are the heaviest elements found on the periodic table?

Biology

1 answer:

ipn [44]3 years ago

8 0

Answer:

hope it helps

Explanation:

The heaviest element found in any appreciable amount in nature is uranium, atomic number 92. (The atomic number refers to the number of protons in an atom's nucleus.) Beyond that, scientists must create new elements in accelerators, usually by smashing a beam of light atoms into a target of heavy atoms.

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Which element is a metalloid? Check all that apply.

lutik1710 [3]

Boron,germanium,silicone,arsenic,antimony,tellurium are the most common ones

6 0

3 years ago

So this is my notes but I don’t get it and there’s more pages.

Lynna [10]

Answer:

I'm not sure what is unclear but I can try to help...

Explanation:

So the group is the number at the top and is verticle. So H,Li,Na, and K share the same Group, 1.

The period is the number at the side and is horizontal. Soo H and He are Period 1.

Now using this information we can find the specifics of each element.

Chlorine, for example, is Group 17A and Period 3 because it matches those.

Let me know if you need further explanation :)

8 0

3 years ago

Help please , asexual reproduction sucks...

Harman [31]

The answer is in asexual reproduction there is only one parent.

6 0

3 years ago

Read 2 more answers

In Drosophila, the bar mutant is characterized by eyes that are restricted to a narrow, vertical bar. When a bar female is mated

Lelechka [254]

Answer:

See the answer below

Explanation:

a) The mode of inheritance of the bar mutant is X-linked and dominant.

Assuming that barness is represented by the allele B.

Bar female = $X^BX^B$ or $X^BX^b$

Wild type male = $X^bY$

Bar female x wild type male:

$X^BX^B$ x $X^bY$

$X^BX^b$ $X^BY$ $X^BX^b$ $X^BY$

All of the F1 flies are bar because a single B allele is required for the trait to be expressed.

Bar male x wildtype female

$X^BY$ x $X^bX^b$

$X^BX^b$ $X^BX^b$ $X^bY$ $X^bY$

All the female offspring are barred while all the males are wildtype barred resulting in a 50/50 (857/905 is approximately 50/50) ratio of barred/wildtype offspring.

b) Genotypes of each of the cross above, including the parents and the F1 generations.

1. $X^BX^B$ x $X^bY$

$X^BX^b$ $X^BY$ $X^BX^b$ $X^BY$

2. $X^BY$ x $X^bX^b$

$X^BX^b$ $X^BX^b$ $X^bY$ $X^bY$

4 0

3 years ago

Characteristics of maltase

xenn [34]

Characteristics of Maltase from Baker's Yeast:
Molecular weight: 68,500 daltons. pH Optimum: 7.0 - 7.5 using maltose as the substrate. Inhibitors: Thiol blocking compounds, heavy metal ions, histidine, and certain amines. Tris should not be used as a buffer due to its inhibitory effect.

3 0

3 years ago