1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Hunter-Best [27]
4 years ago
11

Which of the following atoms contains the same number of neutrons as an atom of Fluorine-19?

Chemistry
2 answers:
Pani-rosa [81]4 years ago
8 0
In Flourine-19, you can determine that the number of Neutrons is 10.

Now, if you look at Neon-20, you subtract its mass by the number of protons, leaving you with 10.

Therefore, Neon-20 has the same number of neutrons as Flourine-19.
Scorpion4ik [409]4 years ago
8 0

Answer:

Neon is the elements with same number of neutrons as of Fluorine.

Explanation:

Mass number of an element is the sum of atomic number of element and number of neutrons.

atomic number is number of protons.

The atomic number of given elements are

Neon: 10

Oxygen: 8

Sodium: 11

Nitrogen: 7

Fluorine: 9

The number of neutrons will be

Fluorine-19

Number of neutrons =19-9=10

Neon-20 :

Number of neutrons = 20-10 = 10

Oxygen-19:

Number of neutrons = 19-8 = 11

Sodium-22

Number of neutrons = 22-11 = 11

Nitrogen-16

Number of neutrons = 16-7 = 9

thus Neon is the elements with same number of neutrons as of Fluorine.

You might be interested in
Please help!!!
e-lub [12.9K]

1) Compounds:

a) Chemically combined.

b) Components change properties.

c) Fixed proportions.

2) Mixtures:

a) Physically combined.

b) Components retain properties.

c) Variable proportions.

3) Both:

a) Made of elements.

b) 2 or more components.

A compound is a pure substance because its molecule cannot be broken down into simpler particles by physical means. For example water (H₂O) is a chemical compound made of two elements (hydrogen and oxygen).

In chemical change new substances are formed, the atoms are rearranged and the reaction is followed by an energy change.  

There are no chemical bonds between substances in the mixture.,For example, mixture is solution of water and alcohol.

8 0
4 years ago
Read 2 more answers
What happens to the ice on a frozen lake, when the<br> temperature changes?<br> Uhkhub hbi
Nat2105 [25]

When temperature changes it melts the ice over the lake.

  • As we know the melting point of ice or water is 0°C or 273K
  • So if the temperature arises up to 0°C or 273.16K then the ice starts melting .
6 0
3 years ago
Energy from the sun travels to the earth through
julia-pushkina [17]

Answer:

D. Infrared Radiation

I hope this helps.

8 0
3 years ago
One of the emission lines that provides the green color in fireworks, which com s from barium salts, has a wavelength of 505nm.
PSYCHO15rus [73]

Explanation:

(a)

The relation between frequency and wavelength is shown below as:

c=frequency\times Wavelength&#10;

c is the speed of light having value 3\times 10^8\ m/s

Given, Wavelength = 505 nm

Also, 1 m = 10^{-9} nm

So,  

Wavelength = 505\times 10^{-9} m

Thus, Frequency is:

Frequency=\frac{c}{Wavelength}

Frequency=\frac{3\times 10^8}{505\times 10^{-9}}\ Hz

Frequency=5.94\times 10^{14}\ Hz

(b)

Also, E=\frac {h\times c}{\lambda}

Where,  

h is Plank's constant having value 6.626\times 10^{-34}\ Js

c is the speed of light having value 3\times 10^8\ m/s

So,

E=\frac{6.626\times 10^{-34}\times 3\times 10^8}{505\times 10^{-9}}\ J

E=\frac{10^{-26}\times \:19.878}{10^{-9}\times \:505}\ J

E=3.94\times 10^{-19}\ J

(c)

Electromagnetic spectrum is range of the frequencies and their respective wavelengths of the various type of the electromagnetic radiation.

In order of the increasing frequency and the photon energy and the decreasing wavelength the spectrum are:  

Red , Orange, Yellow, Green, Blue, Indigo, Violet

Increasing wavelength is the opposite trend. Thus, The longest visible wavelength is red and the shortest is violet.

6 0
3 years ago
True or False: Anushka set out to create something to measure
SpyIntel [72]
I think is true not sure but it might be
7 0
4 years ago
Read 2 more answers
Other questions:
  • Be sure to answer all parts. thallium(i) is oxidized by cerium(iv) as follows: tl+(aq) + 2ce4+(aq) → tl3+(aq) + 2ce3+(aq) the el
    8·1 answer
  • Combining 0.381 mol of Fe2O3 with excess carbon produced 17.4 g of Fe.
    13·1 answer
  • How does having a diverse gene pool help species survive
    13·2 answers
  • Based on Figure 15, determine the solubility of each of the following in grams of solute per 100. g H2O. a. NaNO3 at 10°C b. KNO
    9·1 answer
  • PHYSICAL SCIENCE!!!!!
    12·1 answer
  • What is the mass of water that results from combining 2.0 g of hydrogen with 16.0 g of oxygen?
    9·1 answer
  • What is the maximum number of electrons that can go into the D orbitals
    11·1 answer
  • Which of the following is NOT n intensive property?
    10·1 answer
  • Consider the following chemical reaction:
    12·1 answer
  • Use the information provided to determine ΔH°rxn for the following reaction:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!