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LenKa [72]
3 years ago
8

A common mineral of barium is barytes, or barium sulfate (BaSO4). Because elements in the same peri- odic group have similar che

mical properties, we might expect to find some radium sulfate (RaSO4) mixed with barytes since radium is the last member of Group 2A. However, the only source of radium com- pounds in nature is in uranium minerals. Why
Chemistry
1 answer:
Nuetrik [128]3 years ago
4 0

Answer:

The answer is "Radium is a radioactive isotope produced by spontaneous decay of its atoms of uranium, which would be a radioactive element in of itself".

Explanation:

With the symbol Ra as well as the atomic mass 88, radium is a chemical element. It is the 16th element of its periodic table and also referred to as alkaline earth metals, in group 2. It is the element, which is formed by the spontaneous decay of uranium atoms, a radioactive element in itself.

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The densities of copper, silver, iron, and magnesium are in that order. You are given grams of each metal. Which one has the lar
enot [183]

Density is the ratio of mass to volume. The substance with the lowest density has the largest volume. The volume of magnesium will be the largest.

<h3>What is density?</h3>

Density is the mass per volume of the substance. It is denoted by the Latin letter rho (ρ) or D. It is the division of the mass in kilograms to the volume in cubic meters.

The relation of the density is inversely proportional to the volume and when the order is given in increasing order of density then magnesium will have the largest volume as it has the least density.

Therefore, magnesium has the largest volume.

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3 0
3 years ago
Explain how the immune system responds to pathegons
Ne4ueva [31]

Answer:

The immune system responds to antigens by producing cells that directly attack the pathogen, or by producing special proteins called antibodies. Antibodies attach to an antigen and attract cells that will engulf and destroy the pathogen. The main cells of the immune system are lymphocytes known as B cells and T cells.

4 0
3 years ago
What is the top of a transverse wave
Andru [333]
It would be called the crest.

Happy to help! Have a great evening.

~Brooke❤️
8 0
4 years ago
For each value of the principal quantum number n, what are the possible values of the electron spin quantum number?
Ede4ka [16]

Answer:

The values for spin quantum number +1/2 and - 1/2

Explanation:

Principal quantum number denoted by (n) is used to describe the shell or orbits that electrons are found. Principal quantum number can assume a value of n= 1,2, 3, 4,5............ which indicates K, L, M, N, O shell respectively.

To know the maximum number of electrons in each shell, the formula (2n²) can be used. The letter 'n' denotes the values of principal quantum number 1,2,3,4

For example

  • n=1 (K shell) has maximum number of 2 electrons
  • n=2 (L shell) has the maximum number of 8 electrons
  • n=3 (M shell) has the maximum number of 18 electrons
  • n=4 (N shell) has the maximum number of 32 electrons

All the electron in each shell will have a spin quantum number of +1/2 and - 1/2. One electron in each degenerate orbital will spin up (+1/2) while the other electron will spin down (-1/2).

7 0
3 years ago
A baker touches a pie right after taking it out of the oven. Which statement best explains why the pie feels hot?
ANTONII [103]

Answer:

Well could you please show the answers?

Explanation:

I need to see the statements

6 0
3 years ago
Read 2 more answers
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