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4 years ago

14

Explain how changing protons, neutrons, and electrons affects atoms

2 answers:

Lana71 [14]4 years ago

7 0

Changing the number of electrons affect an atom's charge.

Changing the number of neutrons will produce an isotope of the atom.

Changing the number of protons will turn one atom into the other. For instance, Oxygen has 8 proton, if the proton number is increased by 1, the atom will become Fluorine, which has 9 protons

mrs_skeptik [129]4 years ago

5 0

It put a huge effect on an atom because when atom gain or loss electon's it chagr the chemical properties of an atom.

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If the current through a bulb in a series circuit is 0.4 A and the potential difference across the bulb is 3 V then what is the

sergey [27]

Resistance of the bulb is 7.5 ohms

Explanation:

In a circuit, according to Ohm's Law, the potential difference (voltage) across an element is directly proportional to the current flowing through it.

That is, V ∝ I

⇒ V = IR, where R is the constant of proportionality called the resistance.

Here, current, I = 0.4 A and potential difference, V = 3 V

Resistance, R = V/I = 3/0.4 = 7.5 ohms

8 0

3 years ago

A student on her way to school walks eastward in a straight line 20.0 meters towards the bus stop, but realizes she dropped her

larisa [96]

Answer:

Total displacement will be 47 meter

Total distance will be 83 meters

Explanation:

We have given that first the student go eastward towards bus stop 20 meters

But he realizes that she dropped his physics notebook and so h=she turns back along the same way up to 18 meters

So displacement = 20-18 = 2 meters

And he travel 45 meters in east along the bus stop so total displacement = 45+2 = 47 meters

Total distance traveled by the student = 20+18+45 = 83 meters

3 0

3 years ago

A glass plate whose index of refraction is 1.66 is immersed in a liquid. The surface of the glass is inclined at an angle of 44º

Anna35 [415]

Answer:

C. 1.15

Explanation:

The formula for the critical angle is:

${sin\theta_{critical}}=\frac {n_r}{n_i}$

Where,

${\theta_{critical}}$ is the critical angle

$n_r$ is the refractive index of the refractive medium. ( Alcohol , ? )

$n_i$ is the refractive index of the incident medium. ( Glass, 1.66 )

<u>Critical angle = 44º</u>

Applying in the formula as:

${sin\theta_{critical}}=\frac {1}{1.523}$

${sin\ 44^0}=\frac {n_r}{1.66}$

${n_r}=1.15$

5 0

3 years ago

What is the formula for Kepler’s 3rd law of planetary motion?

Stels [109]

The answer is C Thank you!!!

6 0

3 years ago

1. The names of the compounds FeS, NaCl, NaOH, and Pb(CN)2 all end in the suffix A. -ite. B. -ic. C. -ide. D. -ate.

shtirl [24]

They all end with suffix "-ide"

In short, Your Answer would be Option C

Hope this helps!

5 0

3 years ago