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
Llana [10]
3 years ago
8

What statement about models of isotopes below is accurate?

Chemistry
1 answer:
ryzh [129]3 years ago
4 0

Answer : The correct option is (C) each picture represents an isotope of lithium because they each have 3 protons.

Explanation :

Isotope : It is defined as the element that have the same number of protons but have the different number of neutrons of each of the atom.

As in the given picture, the number of protons are same but number of neutrons are different.

As we know that atomic number is either equal to number of protons or electrons for neutral atom.

The number of protons in the given picture are 3.

So, the element will be lithium with atomic number 3 and all are the isotopes of lithium.

Hence, the correct option is (C) each picture represents an isotope of lithium because they each have 3 protons.

You might be interested in
PLEASE HELP ME IM TAKING A BIG TEST
romanna [79]

Answer:

400 miles because it is going 50 mph

8 0
3 years ago
Read 2 more answers
There are two types of physical changes and chemical reactions- endothermic and exothermic. On the diagram below, which picture
Agata [3.3K]

Answer:

it is b because its releases heat in to all directions and not b because it staying inside and not releasing anything :)

Explanation:

6 0
3 years ago
Read 2 more answers
Write a balanced equation formed when the following elements react with oxygen:a)Zinc
Ainat [17]

Explanation:

a) when zinc burnt in oxygen.

2Zn + O2 -----∆-----> 2ZnO(black residue)

b) when carbon burnt in oxygen.

C+O2----∆---> CO2.

c) when sulphur burnt in oxygen.

S+O2-----∆-----> SO2.

d) when Calcium burnt in oxygen.

2Ca+O2-----∆-----> 2CaO(black residue)

e) when Magnesium burnt in oxygen.

2Mg+O2-----∆----> 2MgO.

f) when sodium burnt in oxygen.

4Na+O2----∆-----> 2Na2O.

hope all these reactions help you.

4 0
3 years ago
Example 13:0.29 grams of a hydrocarbon with vapour density 29 when burnt completely in oxygen produce 448 ml of carbon dioxide a
Juliette [100K]

Answer:

Given, 0.29 g of hydrocarbon produces 448ml of CO2 at STP. then, C2H5 is the emperical formula of hydrocarbon . n = 2 , hence, molecular formula will be C4H10

6 0
3 years ago
What is chemistry? ​
kirill [66]

Answer:the branch of science which examines the material of the universe and changes that these materials undergo

Chemistry deals with composition,structure,properties of matter and changes that these materials undergo

3 0
3 years ago
Other questions:
  • How do you preform water displacement
    15·1 answer
  • Who can do 1 for me<br>So so so confused<br>PLEASE help
    7·1 answer
  • A piece of copper with a mass of 218 g has a heat capacity of 83.9 j/°c. what is the specific heat of copper?
    14·1 answer
  • ______ is a chemical property of matter.
    11·1 answer
  • Balance the equation Li +CO2+H2O—LiHCO3+H2
    8·1 answer
  • Which of the following statements is a testable hypothesis for an experiment
    12·2 answers
  • Please explain to me!!!
    8·1 answer
  • Chemical Reaction = A solid sodium sulfide reacts with gaseous hydrogen chloride to form sodium chloride and hydrogen gas.
    6·1 answer
  • (WRITE AT LEAST 3 COMMENTS FROM YOUR MOST REACTED POST)
    6·1 answer
  • What is the mass grams that are in 2.57 × 10²⁵ molecules of I₂
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!