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Lesechka [4]
3 years ago
15

What is missing in the following nuclear equation? 99 TC → ? + 99 Ru 43 44

Biology
1 answer:
Zolol [24]3 years ago
8 0

Answer: A beta particle

Explanation:

A beta particle is simply a high energy electron that is emitted from the nucleus. It DOES NOT affect the mass number of radioactive element TC, but affects the ATOMIC NUMBER by increasing it by 1 in Ru.

Thus mass number 99 remain the same in TC and Ru, but Atomic number increases from 43 to 44 due to beta decay

So, a beta particle is missing

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A girl rides her scooter 5m North, 7m East, 5m South, and then 7m west. What is her displacement?
OlgaM077 [116]

Answer:

She is in the same place as she started. But she did move 28 units in total.

4 0
3 years ago
Ben Affleck has a cleft chin, but his ex-wife Jennifer Garner does not. Neither one of their two daughters (Violet and Seraphina
kherson [118]

Answer:

Ben - Y Xc

Jen - XCXC

Violet - XCXc

Seraphina - XCXc

Samuel- Y Xc

Explanation:

Given -

Ben has a cleft chin

Let the allele for cleft chin be "c"

and the allele for normal chin be "C"

When Ben with cleft chin mates with wife Jennifer Garner having normal chin, then the two girl child do not have cleft chin but the boy has cleft chin.

This means that the allele C could be X -linked and the mother is not the carrier but the father is

The genotype of father Ben would be Y Xc

Genotype of mother would be XCXC

Genotype of two daughters XCXc  , XCXc which means they are carrier for the next generation

Genotype of Boy - Y Xc

3 0
4 years ago
A hydrophilic peptide hormone is produced in the anterior pituitary gland located at the base of the brain. The hormone targets
dolphi86 [110]

Answer:

The answer is D: The hormone is released into the bloodstream where it can be transported to all cells with the correct receptors.

8 0
4 years ago
A postbirth complete blood count (cbc) has noted an elevated white blood cell (wbc) count of 22,000/mm3. which rationale is accu
Lisa [10]
This is a normal variation due to stress of labor
The level of white blood cells in the body vary due to the amount of external stress that is placed on the body. The level indicated, 22,000/mm³ is within this range, which extends up to 30,000/mm³ for women after delivery. Because this is well within the normal range, there is no need to retest the value obtain neither is there a need to administer antibiotics.
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3 years ago
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faltersainse [42]
D Because supports large numbers of plants and species and variety of crops
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3 years ago
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