Periodic Table/Elements

The positively-charged particle of an atom is a(n) ____, the negatively-charged particle is a(n) ____, and the neutral particle is a(n) ____.

• proton, electron, neutron

• neutron, proton, electron

• electron, neutron, proton

• proton, neutron, electron

The atomic number of an element tells you:

• The number of neutrons

• How much of the element exists in nature

• The number of protons as well as electrons

• The number of protons plus neutrons

The two sub-atomic particles that have mass are ____ and ____, and the sub-atomic particle that is virtually mass-less is the ____.

• protons, neutrons, electron

• neutrons, electrons, proton

• electrons, protons, neutron

• protons, electrons, neutron

Diagram #1 is showing the _____ of the Periodic Table and Diagram #2 is showing the _____ of the Periodic Table.

• periods, groups

• groups, periods

• elements, compounds

• rows, columns

Reference your Periodic Table to choose the correct answer: To what group and period does the element Phosphorous belong?

• group 5, period 3

• group 3, period 5

• group 3, period 15

• group 15, period 3

How can you find the number of neutrons in the most common isotope of an element’s atoms?

• it's the same as the Atomic #

• subtract the Atomic # from the rounded Atomic Mass

• subtract the Atomic Mass from the Atomic #

• subtract the number of electrons from the number of protons

Choose the best answer: The largest colored section of this Periodic Table diagram are which type of elements?

• metals

• non-metals

• metalloids

• elements that are solid at room temperature

Choose the best answer: Which statement is true about the diagram of the atom?

• The atom has 5 valence electrons

• The atom has 7 valence electrons

• The atom has a neutral nucleus

• The atom has an overall positive charge

Tags

NGSS.MS-PS1-1

The period that an element is in on the Periodic Table can tell you how many _____ the element’s atoms have.

• energy levels (electron shells)

• isotopes

• valence electrons

• protons

• neutrons

Reference your Periodic Table to choose the correct answer: Which elements would have the most similar properties to Calcium?

• potassium and scandium

• magnesium and strontium

• all of the elements in period 4

• the other elements that have 20 protons in their nucleus