subject

Biology, 19.12.2019 15:31 baegel

Francium has 36 isotopes, but only francium-223 occurs in nature. francium-223 spontaneously emits particles and energy, so francium-223 is a (an) of francium.

ansver

Answers: 1

Show answers

Another question on Biology

question

Biology, 22.06.2019 03:00

Which of the following are the ingredients that go into the plant and are needed for photosynthesis? select all that apply. 1.) soil 2.) seeds 3.) carbon dioxide 4.) minerals 5.) glucose (sugar) 6.) water 7.) light energy (sunlight) 8.) oxygen 9.) air

Answers: 2

question

Biology, 22.06.2019 12:30

Is becoming less expensive to screen blood samples for dna certain diseases have genetic basis what is possible ethical concern about the availability of inexpensive dna testing

Answers: 1

question

Biology, 22.06.2019 15:00

Which was not a reason why canals were built in florida

Answers: 1

question

Biology, 22.06.2019 17:30

What is the purpose of presenting a false dilemma in a speech?

Answers: 1

You know the right answer?

Francium has 36 isotopes, but only francium-223 occurs in nature. francium-223 spontaneously emits p...

Questions

question

Engineering, 10.12.2019 05:31

Ethane at 25oc combusts with 20% deficient (80% theoretical) air, also at 25oc, to produce a mixture containing co2, co, h2o, h2, o2, and n2. (note:...

question

Business, 10.12.2019 05:31

Acompany’s perpetual preferred stock sells for $102.50 per share, and pays a $9.50 annual dividend. if the company were to issue a new preferred issue...

question

Business, 10.12.2019 05:31

Mason company manufactures and sells shoelaces for $2.00 per pair. its variable cost per unit is $1.70. mason's total fixed costs are $10,500. how man...

question

Chemistry, 10.12.2019 05:31

In the video, the semipermeable membrane separates the two solutions of different concentrations. watch the video and identify which of the following...

question

Engineering, 10.12.2019 05:31

Acompany pays its employees on a weekly basis. the employees are of four types: salaried employees are paid a fixed weekly salary regardless of the n...

question

Mathematics, 10.12.2019 05:31

2. a random sample of 100 observations from a normally distributed population possesses a mean equal to 83.2 and a standard deviation equal to 6.4. (1...

question

Business, 10.12.2019 05:31

13. assume that cane’s customers would buy a maximum of 80,000 units of alpha and 60,000 units of beta. also assume that the raw material available fo...

question

Biology, 10.12.2019 05:31

3. tributyrin agar has a shelf life of only a few days before it loses its opacity. a. with this in mind, explain the importance of positive and negat...

question

Computers and Technology, 10.12.2019 05:31

1os is a very simple operating system that allows multiple users to save and print files. the 141os manages multiple disks, multiple printers, and mul...

question

Mathematics, 10.12.2019 05:31

20. the sample mean is an unbiased estimator for the population mean. this means: (a) the sample mean always equals the population mean. (b) the aver...

question

Physics, 10.12.2019 05:31

Awire of length l and cross-sectional area a has resistance r what will be the resistance of the wire if it is streched to 3 times its original legnth...

question

Computers and Technology, 10.12.2019 05:31

3kn/mm 1 kn/mm 5 mm 3 mm 10 mm consider the above 2d plane strain linear elastic structural problem. the left side has roller boundary conditions allo...

question

Business, 10.12.2019 05:31

Acompany with excess capacity must decide between scrapping or reworking units that do not pass inspection. the company has 22,000 defective units tha...

question

Chemistry, 10.12.2019 05:31

15a.4(a) what is the temperature of a two-level system of energy separation equivalent to 400 cm−1 when the population of the upper state is one-third...

question

Physics, 10.12.2019 05:31

Assuming that each nucleus is roughlyspherical and that its mass is roughly equal to a (in atomic mass units {\rm u}), what is the density rho of a nu...

question

Business, 10.12.2019 05:31

2) the state of ohio department of education has a mandated ninth-grade proficiency test that covers writing, reading, mathematics, citizenship (socia...

question

Chemistry, 10.12.2019 05:31

2na(s) + 2h2o(l) → 2naoh(aq) + h2(g) when 2 moles of na react with water at 25°c and 1 atm, the volume of h2 formed is 24.5 l. calculate the magnitude...

question

Business, 10.12.2019 05:31

Should cities, and even counties, be limited to local or regional issues such as public services and infrastructure, rather than broader issues such a...

question

Engineering, 10.12.2019 05:31

16.1 (a) briefly explain the difference between oxidation and reduction electrochemical reactions. (b) which reaction occurs at the anode and which at...

question

Business, 10.12.2019 05:31

California surf clothing company issues 1,000 shares of $1 par value common stock at $32 per share. later in the year, the company decides to repurcha...

More questions: Biology Another questions