1). A neutron bombards(reacts with) Am-243 , the product is an alpha particle and another species. 2)A neutron collides with U-235, the products are Nb-93, Ni-66, three neutrons, and another species.
3). An alpha particle collides with Bi-214, the products are Fe-78, I-131, a proton, and another species.
4). H-1 fuses together with H-3. What is the one product(besides the energy)?
5). Ca-40 fuses together with Li-7. What is the one product(besides the energy)?
6). A Pu-244 isotope is bombarded with a neutron, the products are Te-135 , three neutrons, and another species.
7). A Nd-151 isotope is bombarded with an alpha particle, the products are K-45, As-81, and another product.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

the answer is c

tell me if wrong

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.