Answer:
2. have no negative particle
Explanation:
Helium atoms contains 2 neutrons and 2 protons (or 2 electrons). Thus, it has a mass number of 4 and atomic number of 2.
Alpha particles are heavy and positively charged, which make them to be deflected in a magnetic or electric charge. So, the helium atoms used as alpha particles for the gold foil experiment must have no negative particle.
<h2>The answer is </h2>
False
<h2>Explanation:</h2>
According to Sigmund Freud human consciousness have been divided into three levels of awareness: the conscious, precociousness, and unconscious. These stages are never understood by any person at the same time. There is always a transition period between these segments. For example the transition stage from wake to sleep where we see a gradual reduction in consciousness with fuzzy, halfway states in between conscious and unconscious.
Answer:
A. the basic unit of life is the organism
Explanation:
According to the organismal theory, organisms are the basic unit of life. The organismal theory contradicts the cell theory of life. The organismal theory states that some of the organisms do not have distinct cells. For example, fungi.
Since the cells in the multicellular organisms are interconnected by one or other means, organisms are the structural unit of life; not the cells.
The organismal theory states that irrespective of the level of body organization present in an organism, all the components such as cells, tissues, organs, etc. work together to facilitate growth and development of whole organisms.
For the first question the answer is C. We know this because Dalton considered matter to be composed of very tiny indivisible particles called atoms which means it can't be further subdivided and thus no sub-atomic particles. And for the second question the answer is the Last one: <span>Ernest Rutherford. The rest of them did not give evidence of the existence of a nucleus or gave poor evidence. Hope this helps</span>
