Question

Protons and Isotopes Quick Check Answers
1.Which statement describes the number of protons in each atom of an element?

*The number of protons is given by the atomic number, which increases by one moving from left to right across each row of the periodic table.*

2.An element has an atomic number of 16. An ion of this element has a 2– charge. How was the ion formed?

*A neutral atom gained 2 electrons.*

3.Rubidium has an atomic number of 37 and a mass number of 85. How many protons, neutrons, and electrons does an ion of rubidium with a 1+ charge have?

*37 protons, 48 neutrons, and 36 electrons*

4.There are three stable forms of neon: neon-20, neon-21, and neon-22. Which statement is true?

*Their atomic masses differ.*

5.Beryllium has an atomic number of 4. How many neutrons does the isotope beryllium-9 have?

*5*

These are all correct.

Answer 1

The answers to the following questions can be found below:

1. The number of protons is given by the atomic number, which increases by one moving from left to right across each row of the periodic table.
2. A neutral atom of the element has gained 2 electrons
3. An ion of rubidium with a 1+ charge will have 37 protons, 48 neutrons, and 36 electrons
4. The atomic masses of the three stable forms of neon: neon-20, neon-21, and neon-22 differ.
5. The isotope beryllium-9 has 5 neutrons

What is an isotope?

Isotope is any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei.

As a consequence, atoms of isotopes will have the same atomic number but a different mass number.

Based on the questions, the following applies;

• The number of protons is given by the atomic number, which increases by one moving from left to right across each row of the periodic table.

• A neutral atom of the element that has atomic number of 16, whose ion has a 2– charge has gained 2 electrons.

• An ion of rubidium with a 1+ charge that has an atomic number of 37 and a mass number of 85 will have 37 protons, 48 neutrons, and 36 electrons.

• The atomic masses of the three stable forms of neon: neon-20, neon-21, and neon-22 differ.

• The isotope beryllium-9 with atomic number of 4 has 5 neutrons.

Learn more atomic number at: https://brainly.com/question/8834373

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