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LenaWriter [7]
3 years ago
7

An element's atomic number is the _____?

Chemistry
2 answers:
g100num [7]3 years ago
6 0
Number<span> of protons found in the nucleus of an </span>atom<span>.</span>
pantera1 [17]3 years ago
6 0
An element's atomic number is the protons with positive charge from the nucleus atom.

Hope it helped you.

-Charlie
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Name and explain 2 positives of renewable energy
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5 0
3 years ago
0.01040 m as an integer
SpyIntel [72]

Answer:

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2 years ago
1. Calculate the attractive bonding force for NaF and for MgO when the ions just touch. Based on the attractive bonding force, w
Andreas93 [3]

Answer:

The attractive force is negative and MgO has a higher melting point

Explanation:

From Couloumb's law:

Energy of interaction, E = k \frac{q1q2}{r}

where q1 and q2 are the charges of the ions, k is Coulomb's constant and r is the distance between both ions, i.e the atomic radii of the ions.

If you look at Coulomb's law, you note that in the force is negative (because q1 is negative while q2 is positive).

In addition to that, the compounds MgO and NaF have similar combined ionic radii, then we can determine the melting point trend from the amount of energy gotten

The melting point of ionic compounds is determined by 1. charge on the ions 2. size of ions. while NaF has smaller charges (+1 and -1), MgO (+2 and -2) has larger charges and greater combined atomic radii. This implies that the compound with greater force would have a higher melting point.

Hence the compound MgO would have a higher melting point than NaF.

5 0
3 years ago
An ion from a given element has 24 protons and 22 electrons
musickatia [10]
Hi,

An ion with unequal number of protons and electrons haves a name. A name depends on whether there are more protons than electrons (CATION) or if there are more electrons than protons (ANION).

Hope this helps.
r3t40
8 0
3 years ago
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