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
nirvana33 [79]
3 years ago
9

Which best explains why changes to the atomic theory were necessary? (2 points)

Chemistry
2 answers:
RSB [31]3 years ago
5 0
It would be the first two because 3 and 4 are irrelevant to the atomic theory :)
STALIN [3.7K]3 years ago
3 0
The answer is A because every ones theory cant be the same

You might be interested in
What is the oxidation number of all elements in MnSO4?
saw5 [17]
The oxidation number of the elements should be equal to zero or the charge of the compound when summed together. In this case, the overall charge is zero. Oxygen has a charge of -2, a total of -8, S has a charge of -2 so Mg must have a +10. 
6 0
3 years ago
List properties of ions.
miskamm [114]

Hard.

Form crystal lattices not molecules.

Good insulators.

High melting points/ Boiling Points.

Conduct electricity when dissolved in water or as a liquid.

Solids do not conduct electricity.

5 0
3 years ago
An example of a greenhouse gas is
Sunny_sXe [5.5K]

Answer:

oxygen

Explanation:

oxygen is very good for the health of every living thing

6 0
3 years ago
Read 2 more answers
If you were to use Lewis theory to predict the formula for the compound between rubidium and fluorine, it would most likely be:
goldenfox [79]

<u>Answer:</u> The formula of the compound formed between rubidium and fluorine is RbF

<u>Explanation:</u>

Ionic bond is defined as the bond which is formed by complete transfer of electrons from one atom to another atom.

The atom which looses the electron is known as electropositive atom and the atom which gains the electron is known as electronegative atom. This bond is usually formed between a metal and a non-metal.

Rubidium is the 37th element of the periodic table having electronic configuration of 1s^22s^22p^63s^23p^64s^23d^{10}4p^65s^1

This will loose 1 electron to form Rb^+ ion

Fluoride is the 9th element of the periodic table having electronic configuration of 1s^22s^22p^5

This will gain 1 electron to form F^- ion

To form RbF compound, 1 rubidium ion is needed to neutralize the charge on fluoride ion

The formation of the given compounds is shown in the image below.

4 0
3 years ago
How are chemical bonds formed?
Neko [114]
The answer is A through transferring or sharing electrons
7 0
3 years ago
Other questions:
  • The positively charged particle of an atom is called a(n)
    7·1 answer
  • _____ reaction is another name for an oxidation-reduction reaction. A. Neutralization B. Half-reaction C. Number-change D. Redox
    10·2 answers
  • The chemical formula tells the types of atoms and how many of each are contained in a compound. Please select the best answer fr
    14·1 answer
  • Whats the Ph level of bleach
    15·1 answer
  • Which of these experimental designs could lead to bias?
    10·1 answer
  • 7. While prospecting in the North Woods, Joe found a gold nugget which had a density of 19.2 g/cm3. Joe dropped the gold into wa
    11·1 answer
  • Hello I need ur guys help on my test its my last take opportunity and I did most of it but some im stumped on so please... put a
    12·1 answer
  • What best describes the bromide ion that forms?
    11·2 answers
  • This planet has a toxic atmosphere.<br> O Mercury<br> O Venus<br> O Earth<br> O Mars
    5·1 answer
  • Guys please finnish thiissss​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!