AP BIO PREP - QUICK PERIODIC TABLE REVIEW

Which of the following is the key characteristic that is ultimately responsible for the unique chemical properties of each element? (Hint from Mr. Taase: focus on the nucleus)

• Each element has a unique atomic mass.

• Each element has a unique atomic number.

• Each element has a unique number of protons.

• Each element has a unique number of neutrons.

Tags

NGSS.HS-PS1-8

Given only a mass number, one can deduce the number of ________ in each atom of an element.

• protons

• neutrons

• electrons

• protons plus electrons

• protons plus neutrons

Which of the following properties is common among elements in the same column of the periodic table?

• They have the same number of protons.

• They have the same number of neutrons.

• They have the same number of electrons.

• They have the same number of electrons in their valence shell.

• They have the same number of electron shells.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following properties is shared by elements in the same row of the periodic table?

• They have the same number of protons.

• They have the same number of neutrons.

• They have the same number of electrons.

• They have the same number of electrons in their valence shell.

• They have the same number of electron shells.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The nucleus of a nitrogen atom contains 8 neutrons and 7 protons. Which of the following is a correct statement concerning nitrogen?

• The nitrogen atom has a mass number of 14 and an atomic number of 7.

• The nitrogen atom has a mass number of 15 and an atomic number of 7.

• The nitrogen atom has a mass number of 15 and an atomic number of 8.

• The nitrogen atom has a mass number of 15 and an atomic number of 15.

Tags

NGSS.MS-PS1-1

The left-to-right position of an element in the first three rows of the periodic table indicates which of the following properties of the element?

• the total number of electrons in the element

• the total number of protons in the element

• the total number of neutrons in the element

• the number of electron orbitals in the element

• the number of electrons in the valence shell

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The chemical behavior of an atom depends primarily upon which of the following?

• the number of neutrons in the nucleus

• the number of protons in the nucleus

• the number of electrons in the valence shell

• the total number of electrons contained by the atom

• the number of electron shells contained by the atom

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Molybdenum has an atomic number of 42. Several common isotopes exist, with mass numbers of 92, 94, 95, 96, 97, 98, and 100. Therefore, which of the following is true?

• The isotopes of molybdenum can have between 50 and 58 neutrons.

• The isotopes of molybdenum have different numbers of valence electrons.

• The isotopes of molybdenum can have between 50 and 58 protons.

• The isotopes of molybdenum can have between 92 and 100 electrons.

One difference between ¹²C and ¹⁴C is that ¹⁴C has...

• ...two more protons than carbon-12.

• ...two more electrons than carbon-12.

• ...two more neutrons than carbon-12.

• ...two more protons and two more neutrons than carbon-12.

• ...two more electrons and two more protons than carbon-12.

Tags

NGSS.HS-PS1-8

An atom has 6 electrons in its outer shell. How many unpaired electrons does it have?

• 0

• 2

• 4

• 6