maliaturner718 maliaturner718

24-10-2020
Chemistry

contestada

An atom has 8 protons, 9 Neutrons, and 10 electrons. What is the mass number?

Respuesta :

24-10-2020

Answer:

17

Explanation:

Mass number = # of protons + # of neutrons

Mass number is calculated using ONLY protons and neutrons. Electrons are not in the count.

Thus, we simply add them together: 8 + 9 = 17

This element is Oxygen - 17.

Answer Link

Otras preguntas

Please help kitty( <3

do you think being humorous is always right in every situation

What is the area of the circle?

River co. just paid a dividend of $2 per share out of earnings of $4 per share. If its book value per share is $25 and its stock is currently selling for $40 pe

Bowl B1 contains one white and two red chips; bowl B2 contains two white and two red chips; bowl B3 contains one white and four red chips. The probabilities of

The question is what 2 things are correct about the neuron when no signal is being transmitted

There are 9 students in a class: 7 boys and 2 girls. If the teacher picks a group of 3 at random, what is the probability that everyone in the group is a boy?

Help me plz State the x- and y-intercepts.

What will these people do next week, complete the sentence using futur tense. 1. Yves / devoir 2. Rachid / envoyer 3. tu / être 4. Anne et Sara / acheter 5. nou

A major determinant of Earth's temperature is the greenhouse effect. a. True b. False