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4 years ago

Carbon has a neutral overall charge, an atomic mass of about 12 and an atomic number of 6. How many electrons does carbon have?

2 answers:

4 0

For the atom to be neutral, it must have the same number of electrons and protons. The aromic number indicates the number of protons. Since Carbon has 6 protons, it would have to have 6 electrons for it to be neutral

vesna_86 [32]4 years ago

3 0

The correct answer is B. 6

Explanation:

Each atom of an element is composed of a certain amount of protons, electrons, and neutrons. In the case of electrons, the number of electrons is the same as the protons in the case of atoms that are neutrally charged. Additionally, the atomic number of an atom indicated the number of electrons in it and the atomic mass the number of electrons and protons together.

This means by knowing the number of protons which in this case is 6 (Atomic number) and the atomic mass which is 12 it is possible to determine the number of electrons. Either because the number of electrons is the same that the number of atoms which means is 6 or the atomic mass minus the protons are the number of electrons, which is also 6 (12-6 = 6).

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Flourine is more reactive than chlorine

IRISSAK [1]

Justification for your answer

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Chlorine is less reactive than fluorine because the outer electrons in a chlorine atom are further from the nucleus than the outer electrons in a fluorine atom. It is harder for a chlorine atom to gain an electron than it is for a fluorine atom.

There are three things to consider every single time relative reactivity is unknown; atomic radius, shielding, and number of electrons. The reactivity is the halogens ability to gain an electron, so number of electrons already in the atom plays a vital role. Chlorine has more electrons so repels a reacting electron with greater force than fluorine, making it less likely to react.

Fluorine also has fewer electron shells than chlorine, so there are fewer electrons between the positive nucleus and the reacting electron to essentiallly block, or weaken, the electromagnetic attraction. This is shielding. Lastly, fluorine is much smaller molecule than chlorine, and the shorter distance, or radius, between the nucleus and the electron again makes it more likely to attract the electron and react to gain a noble gas configuration.

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7 0

4 years ago

Read 2 more answers

Do any of the spheres exist on their own or are they intertwined?

Sauron [17]

Answer:

show me a pic of the problem

Explanation:

show me a pic of the problem

3 0

3 years ago

Consider the combustion of carbon monoxide (CO) in

Julli [10]

Answer:

3.60 mol CO₂

Explanation:

Balanced chemical reaction:

2CO + O₂ ⇒ 2CO₂

The molar ratio between CO₂ and CO is 1:1

2CO₂/2CO = CO₂/CO

Thus, the moles of CO₂ produced from 3.60 moles of CO is 3.60 moles:

(3.60 mol CO)(CO₂/CO) = 3.60 mol CO₂

6 0

3 years ago

4. Identify the different parts to this word problem. A bowling ball of 35.2kg, generates 218 kg.m/s units of momentum. What is

Dafna1 [17]

Given:

Mass of the ball = 35.2 kg

Momentum = 218 kg m/s

To determine:

The velocity of the ball

Explanation:

Momentum (p) of an object is the product of its mass (m) and velocity (v)

p = m*v

v = p/m = 218 kg.ms-1/35.2 kg = 6.19 m/s

Ans: The velocity of the ball is 6.19 m/s

3 0

4 years ago

A sample of 0.300 mol of a metal m reacts completely with excess fluorine to form 23.4 g of mf2. what element is represented by

Phoenix [80]

Molecular weight of m is 40g. Hence, name of element m is Calcium. which is represented by the symbol Ca.

Given,

Moles of metal M = 0.300 moles

weight of mF₂ formed =23.4g

we have to find the name of element m...

Now,

m + F₂ → mF₂

1 mole of m reacts with 1 mole of F₂ (or 2 molecule of flourine) to form 1 mole of mF₂

Hence,

0.300 moles of m reacts with 0.300 moles of F₂ to form 0.300 moles of mF₂.

Hence,

23.4 g = 0.300 moles of mf2

0.300 × 38g + 0.300 × m = 23.4 g

Hence

m = 40 g

So, molecular weight of m is 40g. Hence, name of element m is Calcium. which is represented by the symbol Ca.

Thus, from the above conclusion we can say that, name of element m is Calcium. which is represented by the symbol Ca.

Learn more about Calcium here:brainly.com/question/26636816

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5 0

1 year ago