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
Margaret [11]
3 years ago
8

How has scientists' understanding of the atoms changed over time?

Chemistry
1 answer:
Viefleur [7K]3 years ago
8 0
They discovered more and more objects with different numbers of atoms. which gave them a better understanding
You might be interested in
Which of the following statements of kinetic molecular therapy explains the compresssbilty of gases compared to liquids and solu
valkas [14]

Answer:

Search on google

Explanation:

7 0
3 years ago
Select the correct answer. Elements Electronegativity aluminum (Al) 1.61 calcium (Ca) 1 carbon (C) 2.55 chlorine (Cl) 3.16 fluor
marishachu [46]

Answer: Fe - O


Explanation:


1) Start by showing the chart information in a more understandable way:


Elements ---------- Electronegativity


aluminum (Al) ----- 1.61


calcium (Ca) ------- 1


carbon (C) ---------- 2.55


chlorine (Cl) -------- 3.16


fluorine (F) --------- 4


hydrogen (H) ------ 2.2


iron (Fe) ------------- 1.83


nitrogen (N) --------- 3.04


oxygen (O) ----------- 3.44


phosphorus (P) ----- 2.19


potassium (K) -------- 0.82


silicon (Si) ------------- 1.9


sulfur (S) --------------- 2.58


2) Find the electronegativity differences for the atoms in each compound:


i) Ca – Cl: 3.16 - 1 = 2.16


ii) Fe – O: 3.44 - 1.83 = 1.61


iii) H – S: 2.58 - 2.2 = 0.38


iii= F – F = 4 - 4 = 0


3) Analysis


i) The higher the electronegativity difference between two non-metal elements, the the more the polar the covalent bond. Therefore, the bond H - S is the most polar among the non-metal - non-metal bonds listed. But 0.38 is a small difference, so this is not very polar.


ii) For metal - non-metal bonds, when the difference in electronegativities is too high (close to or greater than 2.0) the ionic character is dominant, and so you cannot classify the bond as polar but as ionic. Therefore, Ca - Cl with 2.16 electronegativity difference is a ionic bond.


iii) The bond in Fe – O has electronegativty difference of 1.61, so it is yet covalent, and highly polar.


Read more on Brainly.com - brainly.com/question/1309389#readmore


<h3>~*"AUBA14"*~</h3>
8 0
3 years ago
Read 2 more answers
Which of the following changes depending on the strength of the gravity field it is in?
jek_recluse [69]
I believe it’s C.) Mass. Hope I’m right.
5 0
3 years ago
Ano-ano ang mensahe ng grupo ng el gamma penumbra sa kanilang palabas​
Alexxandr [17]

Answer:

Pag-alaga ng kalikasan, pagpapakita ng mga tanawin o kagandahan ng Pilipinas

6 0
3 years ago
A) Of options (a) - (d) below, highlight the (unbalanced) chemical equation that represents
labwork [276]

Answer:

c...............

Explanation:.............................yuuuuuuuuuuuuuuuuuuuuuwoopuuuuuuuu

7 0
3 years ago
Other questions:
  • Can someone help me solve all of these problems? (Will give brainliest and a heart)
    5·1 answer
  • Help Please earth science
    9·1 answer
  • A solution is prepared from 26.7 g of an unknown compound and 116.2 g acetone, C3H6O, at 313 K. At this temperature the vapor pr
    8·1 answer
  • Which element has this electron configuration? <br> astatine<br> bromine<br> chlorine<br> fluorine
    12·2 answers
  • What is the difference between iconic bonds and covelent bonds I NEED HELP NOW!!!!!!!
    10·2 answers
  • Matter is made up of tiny particles that are too small to be seen with the naked eye. these tiny particles are known as _______.
    12·2 answers
  • What did thomson’s model of the atom called
    10·2 answers
  • One example of a chemical used in toothpaste is ________
    7·1 answer
  • Assume that temperature and number of moles of gas are constant in this problem.
    10·1 answer
  • 1.) What is the difference between renewable and nonrenewable resources?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!