Monday
March 30, 2015

Homework Help: chem PLEASE HELP

Posted by Sal on Thursday, April 14, 2011 at 7:40pm.

WHO MADE THESE ATOMIC DISCOVERIES?

An atom has a nucleus that is very small
In a reaction, the mass of the products must equal the mass of the reactants.

Electrons are negatively charge pieces of matter.

An electron has a mass that is very small compared to the size of the atom.

The charge to mass ratio of an electron

Any sample of a chemical compound will contain the same elements in the same
proportions.

Neutrons are a particle with no charge.

The magnitude of an electron's charge

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - Decide if each of the following principles were first discovered ...
chemistry - according to the law of conservation of mass, if the products of a ...
Chemistry - Which statement concerning the electrons surrounding the nucleus of ...
physical science - in a balanced chemical equation the mass of the reactants is ...
Science - 1. Which statement about subatomic particles is NOT true? (1 point) ...
chemistry - 1.what is meant by atomic number of an element? 2.the mass number of...
PHYSICAL SCIENCE - IN A BALANCED CHEMICAL EQUATION,THE MASS OF THE REACTANTS IS ...
Final Exam- Honors Physical Science - how can you determine the number of ...
Chemistry - The standard atom for the atomic masses of all the elements is the ...
physics - A neutron causes the element 88X232 to change according to the ...

Members