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
Step2247 [10]
3 years ago
11

A student thinks that the more protons an atom has, the more reactive it will be. Which will best disprove this student's idea?

Chemistry
2 answers:
Tema [17]3 years ago
6 0

Answer:

Compare the reactivities of lithium (Li) and Krypton (Kr)

Explanation:

Lithium has an <em>atomic number </em>of <em>3</em> while krypton has an <em>atomic number</em> of <em>36</em>. Note that <em>atomic number</em> is the <em>number of protons </em>present in an atom. It can be deduced from the above that krypton has more protons than lithium however krypton is found in the group zero of the periodic table and thus a noble gas. One of the properties of noble gases/group zero elements is that they have low reactivity because of there octet configuration/completely filled outermost shell.

However, lithium on the other hand is a member of group 1 (called alkali metals) in the periodic table. Group 1 elements are highly reactive (there members are some of the most reactive metals) because they have just one electron in there outermost shell which can be easily donated to achieve duplet/octet configuration.

Hence, Lithium (Li) with 3 protons is more reactive than krypton (Kr) with 36 protons hence disputing the student's idea.

d1i1m1o1n [39]3 years ago
3 0
I'd have to say that the best choice of the ones listed above would be the first one.
You might be interested in
In addition to the two types of motion found in liquids, gases have <br> What kind of motion
makvit [3.9K]

Answer:

In liquids, particles are quite close together and move with random motion throughout the container. Particles move rapidly in all directions but collide with each other more frequently than in gases due to shorter distances between particles.

3 0
2 years ago
An undergraduate weighed out 20grams of sodium hydroxide pellets. If Na =23, O = 16 andH = 1, What is the mole of this sodium hy
tatuchka [14]
The answer would be .5 mols because you take the total amount of grams, which is 20, and you had up the molar mass of sodium hydroxide, which would be 40. After you have this you would set this up as a stochiometry equation. With 1 mol on top you dived 20/40 to cancel out your grams. This leaves you with .5 mols

3 0
3 years ago
The chemical equations in model 1 contain the phase notations (s), (l), (g), and (aq). match each symbol with its meaning.
Sever21 [200]

Reaction equations contains symbols which show the physical state of the reactants and products.

<h3>What is a chemical equation:</h3>

A chemical equation is an expression that shows the interaction of reactants to yield products. Usually, symbols such as (s), (l), (g), and (aq) are used to show the state of the reactants and products.

The following are the respective meanings of these symbols;

  • (s) - solid
  • (l) - Liquid
  • (g) - gas
  • (aq) - dissolved in water

Learn more about reaction equations: brainly.com/question/1170557

8 0
1 year ago
Describe the difference between a ball-and-stick model and a space-filling model of a compound.
Lisa [10]
A space-filling model shows the relative amount of space each atom takes up. In other words, a space-filling model can show relative sizes of atoms. However, unlike ball-and-stick or structural models, space-filling models do not show bond lengths clearly. Bonds are not really like sticks in a ball-and-stick model.
4 0
3 years ago
Please help me with my 8th grade chemistry, I'm really confused
saveliy_v [14]

Answer:

The answer would be C, in both chemical and physical change, because everything is made up of matter. So if you have a chemical or physical change, that doesent change the total mass of your product ever.

Explanation:

7 0
2 years ago
Other questions:
  • A/an _______ is a type of research that involves observation and collecting data but does not include a control. A. independent
    7·1 answer
  • Which statement best describes how a salmon's tail fin helps it to survive?
    13·1 answer
  • 5. How many moles are in 58.6 L of Nitrogen gas (N.) at STP?
    7·1 answer
  • Which of these conclusions is most likely correct about the locations?
    8·1 answer
  • 50 Points!! 25 Each Points Please Help ASAP!! View Attached Image!! Will Mark Brainliest If All Are Answered!!
    7·1 answer
  • H2 how many elements?
    10·1 answer
  • When a solid undergoes _____ it takes up less space due to cooling
    8·2 answers
  • This is Science, if you can answer this, much appreciated :) Both questions a and b, thank you!! I need this asap :)
    13·1 answer
  • The chemical formula of glucose isC6H12O6. What are the names of the elements glucose, and how many atoms of each element are pr
    9·1 answer
  • Where did Rutherford believe the protons were found?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!