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Anastaziya [24]
2 years ago
14

How many valence electrons does this atom have ? 1s^2 2s^2 2p^6 3s^2

Chemistry
1 answer:
tangare [24]2 years ago
5 0

Answer

there is 2 electrons on that atoms

Explanation:

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What properties does a substance have to have to be a mineral?.
UkoKoshka [18]

Answer:

the description of a mineral species usually includes its common physical properties such as habit, hardness, lustre, diaphaneity, colour, streak, tenacity, cleavage, fracture, parting, specific gravity, magnetism, fluorescence, radioactivity, as well as its taste or smell and its reaction to acid.

7 0
2 years ago
orbital cellulitis 5462 children included for study, 1347 (24%) were prescribed corticosteroids within 2 days of admission
son4ous [18]

It's unable to identify a decrease in LOS linked to corticosteroid exposure during hospitalization for ocular cellulitis in this database search. After two days of hospitalization, operational episodes and the prescription of corticosteroids were related to admission to the PICU.

Within two days of admission, 1347 (24%) of the 5462 children who were included in the research received a corticosteroid prescription. In analyses that controlled for age, the existence of meningitis, abscess, or visual problems, as well as the surgical episode and PICU admission within 2 days, corticosteroid prescription was not linked with LOS (e = 1.01, 95% confidence interval [CI]: 0.97-1.06). Among patients with a primary diagnosis of orbital cellulitis, corticosteroid exposure was linked to surgical events after two days of hospitalization (odds ratio = 2.05, 95% CI: 1.29-3.27) and 30-day readmission (odds ratio = 2.40, 95% CI: 1.52-3.78). Prospective, randomized control trials are required prior to the widespread usage of corticosteroids.

Learn more about orbital cellulitis here:-

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4 0
1 year ago
The Law of Multiple Proportions states that ____.
harkovskaia [24]

Answer: when two elements combine, A and B, the ratio of the weight of B combining with A is always a whole number

Explanation:

5 0
3 years ago
7. A hypothesis needs to be written in a specific format.
Nastasia [14]

Answer:

a . knowledge and existing theories .

b. falsifiable scope

4 0
2 years ago
An element has three naturally occurring isotopes. ten percent (.10) occurs as 55^x, fifteen percent (.15) occurs as isotope 56^
Leviafan [203]
The average atomic weight is, from the name itself, the average weight of all its naturally occurring isotopes. All you have to do is multiple the abundance of each isotope with its individual mass, then add them altogether.

Mass = (0.10*55)+(0.15*56)+(.75*57)
<em>Mass = 56.65 amu</em>
5 0
3 years ago
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