How many protons, neutrons, and electrons are in one atom of 67Zn ?

Question

How many protons, neutrons, and electrons are in one atom of 67Zn ?

BlackTom AI · Accepted Answer

We start by identifying the key facts needed: zinc has an atomic number of 30, which means 30 protons in every atom. The mass number given is 67, so the number of neutrons is mass number minus atomic number: 67 − 30 = 37 neutrons. In a neutral atom, the number of electrons equals the number of protons, so there are 30 electrons. Now evaluate each option:

Option 1: 67 protons, 30 neutrons and 30 electrons. This is incorrect because the atom cannot have 67 protons for zinc (atomic number is 30). The mass number 67 includes the protons and neutrons combined, so 67 protons would imply an entirely different element.

Option 2: 37 protons, 30 neutrons and 37 electrons. This misstates the proton count (should be 30, not 37) and also assigns 37 electrons, which would imply a highly charged ion rather than a neutral atom. It confuses the fundamental identity with incorrect subatomic counts.

Option 3: 30 protons, 67 neutrons and 40 electrons. Here the neutron count is wrong (neutrons should be 37, not 67), and the electron count (40) does not match the proton count for neutrality. This option mixes up mass composition and charge balance.

Option 4: 30 protons, 37 neutrons and 30 electrons. This aligns with the known atomic number (30 protons), the given mass number giving 37 neutrons, and a neutral zinc atom having 30 electrons. Each count matches the standard relationships: protons define the element, neutrons + protons make up the mass number, and electrons balance protons in a neutral atom.

In summary, the only option that satisfies the atomic number, mass number, and charge neutrality consistently is the one with 30 protons, 37 neutrons, and 30 electrons.

How many protons, neutrons, and electrons are in one atom of 67Zn ?

View Explanation

Log in for full answers

Similar Questions

The nucleus can be positively or negatively charged depending on the identity of the atom.

Read each statement below and identify all true statements. Circle all correct answers.

In any neutral atom, there are equal numbers of

A 187Re3- anion contains [Fill in the blank] protons, [Fill in the blank] neutrons, and [Fill in the blank] electrons. (Input numbers only.)

Which of the following statements about the modern atomic model is/are incorrect?

Atoms are composed of

How many electrons, protons, and neutrons are there in the ion 103 45 X3+?

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler