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
igor_vitrenko [27]
3 years ago
6

What is the mass number of sodium

Chemistry
2 answers:
lina2011 [118]3 years ago
3 0

Answer:

Explanation:

Sodium mass number 23, 11 electrons

Magnesium: neutrons = 12

aluminum : atomic number  = 13

phosporus : protons = 15

Pavlova-9 [17]3 years ago
3 0

Answer:

23

Explanation:

You need to add protons and neutrons to get mass

You might be interested in
4. How is a lead storage battery recharged?
alekssr [168]
The answer is c Yep Allll day
6 0
3 years ago
Read 2 more answers
Which choice lists the correct order of the coefficients of each substance in the following neutralization reaction when the equ
Gnoma [55]
The third one you have listed 


4 0
3 years ago
When bonds are (broken/formed) there is a positive energy change.
krek1111 [17]

Answer: Hello i am confused are you asking a question?

Explanation:

3 0
3 years ago
Read 2 more answers
Calculate the de broglie wavelength of a subatomic particle that is moving at 351 km/s if its mass is 9.11 à 10â31 kg. λ = hmuh
gregori [183]

The de Broglie wavelength of a subatomic particle is 2.09 nm.

 λ = h m v = h

momentum : wherein 'h' is the Plank's steady. This equation pertaining to the momentum of a particle with its wavelength is de Broglie equation and the wavelength calculated the use of this relation is de Broglie wavelength.

Frequency is the ratio of velocity and wavelength in relation to hurry. In evaluation, wavelength refers back to the ratio of velocity and frequency.

Wavelength is the gap between the crests of waves or a person's fashionable mind-set. An instance of wavelength is the gap between the crest of two waves. An instance of wavelength is while you and some other character share the equal standard attitude and might for that reason speak properly.

calculation is given in the image below

de Broglie wavelength λ = h/mv

                                          = (6.626 * 10^-34)/9.1 * 10^-31 *351 *10^3

                                          = 2.07 *10^-9

                                 Hence, = 2.op nm    

Learn more about de Broglie wavelength here:-brainly.com/question/16595523

#SPJ4

6 0
2 years ago
Jacob floated a long steel sewing needle on a small piece of cork in a glass of water. He noticed that as he turned the glass ar
max2010maxim [7]

Answer:

<em>Hello, Your answer will be </em><em>B) Jacob's backyard is on the north side of his house.</em>

<em>Hope That Helps!</em>

7 0
3 years ago
Read 2 more answers
Other questions:
  • In the Arrhenius equation, temperature is directly proportional to which factor
    5·1 answer
  • HELPPPPPPPP PLZZZZ MVP ME .!!!
    15·1 answer
  • how would you determine which layer is organic in a separatory funnel if the density of the soltuions were unkown
    5·1 answer
  • Rubbing alcohol is 70.% (v/v) isopropyl alcohol by volume. How many mL of isopropyl alcohol are in a 1 pint (473 mL) container?
    12·1 answer
  • The dimensions of a rectangular solid are measured to be 1.27 cm, 1.3 cm, and 2.5 cm. The volume should be recorded as
    7·1 answer
  • To determine the freezing point depression of a LiCl solution, Toni adds 0.411 g of LiCl to the sample test tube along with 19.7
    5·1 answer
  • One of many cells in the retina of the eye that responds to low light. VOCABULARY
    11·2 answers
  • PEASE HELP!! I NEED THIS DUE BY THIS FRIDAY!!!!
    5·2 answers
  • Please help with Chem I DON'T HAVE ENOUGH TIME!
    15·2 answers
  • Write the complete chemical equations for production of pentanol from pentene​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!