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
lara31 [8.8K]
3 years ago
14

Please help. it’s my last question.

Chemistry
1 answer:
ale4655 [162]3 years ago
4 0
<h3>Further explanation </h3>

Given

Atomic symbol

Required

Atomic composition

Solution

Atomic number = number of protons = number of electrons

Mass Number (A) is the sum of protons and neutrons

Number of protons and Number of Neutrons  in nucleus

Number of electrons in the shell

From the picture:

protons = 3

neutrons = 4

electrons = 3

atomic number = protons = electrons = 3

mass number = protons + neutrons = 3+4 = 7

You might be interested in
Have an infinite number of significant figures
vovikov84 [41]
The answer is: Non-zero
7 0
3 years ago
If a sloth is traveling at its top speed of 0.067 m/s (0.15 mph), how long does it take the sloth to travel a 11.5 meter tree?
marishachu [46]
I think the answer is a: 17mins
7 0
3 years ago
Read 2 more answers
What distinguishes a fungi from a plant?
Stells [14]

no root type structures

7 0
4 years ago
Which atoms were needed to form the sodium nitrite?
alex41 [277]

Answer:

Molecular Formula : NaNO2 or NNaO2 and Molecular Weight:

68.995 g/mol

Explanation:

6 0
3 years ago
What do molecular clocks have to do with reaction rates?
Akimi4 [234]
The atomic clock is a procedure that uses the change rate of biomolecules to reason the time in ancient times when at least two living things veered. A device utilized by developmental scientists to gauge the rate of speciation utilizing changes in DNA. 
Change in DNA/time = biological rate
5 0
3 years ago
Other questions:
  • A compound contains 39.0% potassium, 1.01% hydrogen, 12.0% carbon and 47.9% oxygen. Find its empirical formula
    11·1 answer
  • Classify the following reaction: 2H2O 2H2 + O2
    6·2 answers
  • Which statements describe friction? Select four options.
    12·2 answers
  • What is the formula for salt used for the green light in the fireplace
    9·1 answer
  • A student prepares a standardized solution of sodium hydroxide by the procedure outlined. The student first prepares a saturated
    14·1 answer
  • 15 POINTS FOR ANYONE WHO CAN ANSWER THIS!!!!!! plZ
    7·1 answer
  • Suppose you wish to determine the order of the reaction. You initially measure a rate, r0, given some arbitrary concentration of
    5·1 answer
  • PLEASE HELP ME!!! i have no idea how to answer these!
    6·1 answer
  • What is the leaving group when converting a carboxylic acid to an ester?.
    6·1 answer
  • Consider the dissociation of srso4, which has a ksp of 3.2 x 10-7. what do the three rows of (i,c,e) stand for in the table? how
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!