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3 years ago

Deuterium on a periodic table?

1 answer:

5 0

<span>Deuterium itself is not on the periodic table, but it is known as a heavy hydrogen which is on the table. The nucleus of deuterium is called deuteron and has a neutron in it while most commonly protium has no neutrons in its nucleus. Deuterium is one of two different stable isotopes of hydrogen. I'm not entirely sure on what answer you needed, but I hope this helped:)

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These diagrams show two atoms of fluorine and an atom of magnesium.

Diano4ka-milaya [45]

The magnesium atom looses two electrons which are accepted by each of the fluorine atoms. (Option D).

<h3>What is an ionic bond?</h3>

An ionic bond is formed when two ions are formed by the loss or gain electrons. In this case, magnesium has to loose two electrons while fluorine will gain two electrons.

Thus, the correct steps in the formation of an ionic bond between these atoms are A magnesium atom donates two electrons to the fluorine atoms → Each fluorine atom accepts one of the electrons → The magnesium atom becomes a +2 ion → Each fluorine atom becomes a -1 ion (Option D).

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6 0

2 years ago

The relative molecular mass of lead (ii) triozonitrate (v) is [pb = 108, N = 14, O = 16]

Soloha48 [4]

Answer:

need

Explanation:

points

7 0

4 years ago

You have 54.32 grams of PbCl4. How many moles of PbCl4 do you have?

Dima020 [189]

Answer:

0.156mol

Explanation:

Number of moles of a substance can be calculated from its mass by dividing its mass by molar mass i.e.

Number of moles (n) = mass/molar mass

Molar mass of PbCl4 is as follows, where Pb = 207.2g/mol, Cl = 35.5g/lol

PbCl4 = 207.2 + 35.5(4)

= 207.2 + 142

= 349.2g/mol

Using: mole = mass/molar mass

mole = 54.32 grams ÷ 349.2g/mol

mole = 0.1555

mole = 0.156mol

6 0

3 years ago

True or False

horsena [70]

1. False, 2. True, 3. True, 4. False, 5. True, 6. False, 7. True, 8. False, 9. Incomplete and 10. True.

1. Atoms have no weight - False

Atomic mass is the total mass of an atom. This is roughly equal to the total number of protons and neutrons with a small addition of electrons.

2. The electron is the heaviest part of the atom - in fact

3. All protons have the same mass - True

4. All atoms have the same mass - False

The mass of each element depends on the number of protons and neutrons it contains.

5. All neutrons have the same mass. - True

6. An oxygen atom weighs as much as a nitrogen atom. - False

o2 has a molecular weight of 15.9994 g/mol, and the molar mass of nitrogen is 14.0067 g/mol.

7. All oxygen atoms have the same mass - True

8. If we add neutrons and electrons to find the mass of an atom, the atomic mass of calcium is 40.08 - False

The number of protons and neutrons in an element determines its mass number. Protons and neutrons are the mass numbers.

9. The circular mass is 41, which is not quite correct.

10. Isotopes are identical atoms with differing numbers of protons. - True

Learn more about the atoms at

brainly.com/question/28577022?referrer=searchResults

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6 0

1 year ago

What are mand n in the rate law equation?<br> Rate = k[A]”[B]"

frez [133]

A (they are experimentally determined exponents)

6 0

3 years ago