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dimulka [17.4K]
3 years ago
12

What is the overall electric charge for individual atoms on the periodic table of elements?

Chemistry
2 answers:
Vaselesa [24]3 years ago
6 0

Explanation:

All the atoms present in periodic table are neutral in nature and it is known that a neutral atom means that it contains no charge.

For example, sodium is present as Na in the periodic table. And, it does not contain any charge.

When a neutral atom loses or gains an electron then it acquires a charge.

For example, atomic number of calcium is 20 and its electronic distribution is 2, 8, 8, 2. Hence, in order to acquire stability when it loses 2 valence electrons then neutral atom of Ca changes into Ca^{2+}.

Hence, it means that by loosing 2 valence electrons calcium has an electric charge of +2.

miv72 [106K]3 years ago
4 0

Answer:

Neutral

Explanation:

Atoms on the periodic table all have neutral electric charges. This is because they have an equal number of protons, which are positivly charged, and electrons, which are negatively charged.

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How many grams are in 4.3 x 10 -4 moles of calcium phosphate?
attashe74 [19]

Explanation:

Ca3(PO4)2 1 mole has 310.2 g

Ca3(PO4)2 4.3 × 10^-4 moles has 4.3 × 10^-4 × 310.2

= 1,333.86 × 10^-4

= 1.334 × 10^-1

OR 0.1334 g

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3 years ago
How are ionic bonds formed and what is the attractive force within an ionic bond
Akimi4 [234]

Answer and Explanation:

<u><em>How are ionic bonds formed?</em></u>

  • Ionic bonds are formed as a result of a redox reaction.
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  • <em>Formation of anions:</em> in which atoms of another element with high electron affinity accepts electrons to achieve  a stable electronic configuration.
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Na + Cl → Na⁺ + Cl⁻ → NaCl

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6 0
3 years ago
Benzoyl chloride, C6H5COCl, reacts with water to form benzoic acid, C6H5COOH, and hydrochloric acid. This first-order reaction i
djyliett [7]

<u>Answer:</u> The time required for the conversion of benzoyl chloride to benzoic acid is 390 seconds.

<u>Explanation:</u>

The expression for the rate law of first order kinetics is given as:

\ln \frac{N}{N_o}=e^{-kt}      ......(1)

where,

N_o = initial mass of isotope = 100 g

N = mass of the parent isotope left after the time = 100 - 25 = 75 g

t = time taken = 26 s

k = rate constant = ?

Putting values in above equation, we get:

\ln \frac{75}{100}=e^{-k\times 26}\\\\k=0.011065s^{-1}

Now, we need to find the time when 99 % of the reaction is complete. Using equation 1 again, we get:

N_o = initial mass of isotope = 100 g

N = mass of the parent isotope left after the time = 100 - 99 = 1 g

t = time taken = ? s

k = rate constant = 0.011065s^{-1}

Putting values in above equation, we get:

\ln \frac{1}{100}=e^{-0.011065\times t}\\\\t=416s

Time required for the conversion of benzoyl chloride to benzoic acid = 416 - 26 = 390 s

8 0
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inna [77]

Answer:

bat hindi nalang ikaw mag sagot dyan bubu ka ba huh well search mo nalang sa g00gle yan teh baka sakali lang like duh haha gawin mo nalang yan

that's it!

6 0
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