Question

1. which particle is this? protons
2. what charge does it have? positive
3. where is it found in the atom? exist the nucleus
4. the atom above would be identified as which element?
5. what is the atomic mass of the atom above?
6. how many electrons are located in the nucleus of the atom?
7. an atom has 35 protons in its nucleus. how many electrons will it have?
8. what is the atomic mass of an atom with 3 protons, 3 electrons, and 4 neutrons?

Explanation:

Step1: Determine element by proton number

The number of protons determines the element. From the text, we assume the number of protons is 2 (from answer to question 11). Helium has 2 protons.

Step2: Calculate atomic mass

Atomic mass = number of protons + number of neutrons. Given 2 protons and assuming 0 neutrons (not given otherwise), atomic mass = 2.

Step3: Find number of electrons in neutral atom

In a neutral atom, number of electrons = number of protons. So if 2 protons, then 2 electrons.

Step4: Calculate atomic mass for new - atom

For an atom with 3 protons, 3 electrons and 4 neutrons, atomic mass = 3 (protons)+ 4 (neutrons)=7.

Answer:

1. Helium
2. 2
3. 2
4. 35
5. 7