Question

atom a

1. how many protons are in atom a? ______________
2. how many neutrons are in atom a? ______________
3. how many electrons are in atom a? ______________
4. what is the atomic mass of atom a? ______________
5. what is the atomic number of atom a? ______________

1. name the element which has the following number of particles:

a. 26 electrons, 29 neutrons, 26 protons ______________
b. 53 protons, 74 neutrons ______________
c. 2 electrons (neutral atom) ______________
d. 20 protons ______________
e. 86 electrons, 125 neutrons, 82 protons (ion) ______________
f. 0 neutrons ______________

1. protons ____________ atomic mass ____________

neutrons ____________ atomic number ____________
electrons ____________ element symbol ____________
element name ______________
ion: cation/anion/no charge ______________
legend:
● proton
○ neutron
● electron

Explanation:

Step1: Count protons in Atom A

Count the proton - like particles in Atom A according to the legend.
Let's assume from the image (since we can't see it clearly, but the general method is this), if we count the particles marked as protons in Atom A, we get the number of protons.

Step2: Count neutrons in Atom A

Count the neutron - like particles in Atom A.

Step3: Count electrons in Atom A

Count the electron - like particles in Atom A.

Step4: Calculate atomic mass of Atom A

Atomic mass = number of protons+number of neutrons.

Step5: Determine atomic number of Atom A

Atomic number = number of protons.

For the second part:

Step6: Identify element a

The element with 26 electrons, 29 neutrons and 26 protons is Iron (Fe) because the atomic number (number of protons) is 26.

Step7: Identify element b

The element with 53 protons is Iodine (I). We know that the atomic number determines the element, and here atomic number = 53.

Step8: Identify element c

An atom with 2 electrons (neutral atom) has 2 protons and is Helium (He).

Step9: Identify element d

An atom with 20 protons is Calcium (Ca).

Step10: Identify element e

An atom with 82 protons is Lead (Pb).

Step11: Identify element f

An atom with 0 neutrons and 1 proton is Hydrogen (H).

For the last atom in the image:

Step12: Count protons

Count the proton - like particles.

Step13: Count neutrons

Count the neutron - like particles.

Step14: Count electrons

Count the electron - like particles.

Step15: Calculate atomic mass

Atomic mass = number of protons + number of neutrons.

Step16: Determine atomic number

Atomic number = number of protons.

Step17: Find element symbol

Look up the element in the periodic table based on atomic number.

Step18: Determine element name

Name the element.

Step19: Determine ion type

If number of electrons = number of protons, no charge. If electrons < protons, cation. If electrons>protons, anion.

Since we can't see the actual counts from the blurry image, we can't give numerical answers. But the steps to solve are as above.

Answer:

(Answers for Atom A's questions depend on actual counts from the image)
a. Iron (Fe)
b. Iodine (I)
c. Helium (He)
d. Calcium (Ca)
e. Lead (Pb)
f. Hydrogen (H)
(Answers for the last atom depend on actual counts from the image)