Element,Proton,Neutron and electron question...?

Question

The Element T has the mass number of 23 and the atomic number 11. What is the number of protons present in the nucleus of element T??
A.11
B.12
C.23
D.34

ahh i see..so atomic number means proton number..thats why its 11 right??

Answer 1

11... the atomic number is the number of protons in an element's nucleus

Answer 2

Well, the answer is 11, but it is more important to understand how we got it. Let me explain.

Mass number is the total of protons and neutrons in the nucleus. Atomic number is the number of protons only and the number of electrons in a normal atom is equal to the number of protons. If the electrons are less, the atom becomes a positively charged ion and if the electrons are more, it becomes a negatively charged ion. In all these cases, the element remains basically the same and its atomic number, symbol, mass number etc. does not change. All chemical reactions involve exchange of electrons in the outer orbits.

In a few cases, the neutron in the nucleus gives off an electron and thus the atomic number changes since the neutron has now become a proton. The element is transmuted into another element.

Answer 3

The Atomic number tells you the amount of Protons present !! In this case the Atomic number is 11 - so there are 11 protons.

The mass number gives the total amount of protons and neutrons, therefore you can work out the number of Neutrons present by subtracting the Atomic number from the Mass Number.

Answer 4

the answer is surely A because the atomic number of any neutral element determines its number of proton and electrons, however if it is a radioactive substance the atomic number still gives the proton number but not the electron number. In this case, the element T is a neutral atom because the question did not refer to any radioactivity, therefore the answer is 11.

hope u understood

Answer 5

11 protons, 12 neutrons and 11 electrons , the atomic number is the number of protons and number of electrons unless it is an ion

Answer 6

in an element the no of protons and no of electrons ll b the same and this ll give the atomic number of the element. the no of protons or the no of electrons with its no of neutrons ll give the atomic weight of the element.

Answer 7

11 protons
extra credit
12 neutrons