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
ehidna [41]
2 years ago
11

What is the nucleus of an atom?

Chemistry
1 answer:
Leno4ka [110]2 years ago
5 0

Answer:

The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment. 

You might be interested in
A student performs an experiment to find the percentage of water in a hydrate. He determines that the hydrate contains 22% water
Stels [109]

Answer:

A feasible error could have been the removal of the sample before all water evaporated.

Explanation:

In order to determine the percentage of water in an hydrate, an experiment that could be performed is the heating of the sample until the mass does not change. If the student heated the sample an insufficient amount of time, water will be present in the sample, thus reducing the percentage reported.

4 0
3 years ago
An example of basic research is A) the development of new plastics that can be recycled. B) the study of the relationship betwee
elena-s [515]

Answer:

C) the study of the composition of the atom.

Explanation:

A research can be defined as a systematic investigation or careful consideration of study with respect to a particular problem using scientific methods such as collection of data, documenting critical information, analysis of data, and the establishment of facts in order to reach new conclusions.

Similarly, a basic research is an approach to research that's typically theoritical and it's aimed at developing a theory, searching for the truth or gain a better understanding about a phenomenon, subject, or basic laws on nature.

In this context, an example of basic research is the study of the composition of the atom.

An atom can be defined as the smallest unit comprising of matter that forms all chemical elements. Thus, atoms are basically the building blocks of matters and as such determines or defines the structure of a chemical element.

Generally, atoms are typically made up of three distinct particles and these are protons, neutrons and electrons.

5 0
2 years ago
If you start a chemical reaction with 5 atoms of hydrogen, how many hydrogen atoms will you have when it is finished? Group of a
mote1985 [20]

Answer:

5 atoms

Explanation:

According to the law of conservation of mass, "matter is neither created nor destroyed in the cause of a chemical reaction".

We finish with what we start with in a chemical reaction. Although new species might form, the number of atoms on both sides of the expression will still be maintained.

All chemical reactions obey this law of conservation.

8 0
3 years ago
PLZ HELP! Give me a really (winner) good idea for a kids science fair! My little sister has to do one through my school and I ne
OverLord2011 [107]

Explanation:amiga

te

extrañar

8 0
3 years ago
How many atoms of each element are in the chemical formula P2O5?
marshall27 [118]

Answer:A

Explanation:2 phosphorus and 2 oxygen

4 0
3 years ago
Other questions:
  • plate a and plate b are both continental plates. what is ghe most likely result if the two plates collide?
    8·1 answer
  • Which of the following compounds would be named with a name that ends in -yne?
    5·1 answer
  • The electron cloud of HF is smaller than that of F2, however, HF has a much higher boiling point than F2 has. Which of the follo
    13·1 answer
  • Which coefficient before sodium bromide (NaBr) balances this chemical equation?
    12·1 answer
  • The Bohr model of the atom suggest that the protons and neutrons are found in the nucleus and the electrons orbit the nucleus mu
    9·1 answer
  • 18)How many moles of aluminum are needed to react completely with 3.2 mol of FeO?
    13·1 answer
  • If 7.50 g of methane gas (CH4) is in a 3250 mL container at 25° C, what is the pressure
    9·1 answer
  • The form in which the chemical energy is stored in cells during photosynthesis
    9·1 answer
  • PLEASE HELP! DUE in 5 minutes
    10·2 answers
  • Calculate the number of atoms in 3.21 mole of Mg?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!