Periodic Table

Which scientist edited the Periodic Table and arranged elements in increased atomic number?

• Rutherford

• Dalton

• Mendeleev

• Moseley

Which scientist created the Periodic Table and arranged elements in increasing atomic mass?

• Rutherford

• Thomson

• Mendeleev

• Moseley

Elements in the same group or family have _____________.

• the same number of valence electrons and different properties.

• the same number of valence electrons and similar properties

• different number of valence electrons and similar properties.

• different number of valence electrons and different properties.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which class of elements are malleable, ductile, shiny when clean and polished, good conductors of heat and electricity, and reacts with acids to form hydrogen gas?

• metals

• nonmetals

• metalloids

• ions

What is the name of Group 1 elements?

• Alkali Metals

• Alkaline Earth Metals

• Transition Metals

• Halogens

What is the name of the elements that are unreactive and have a full octet?

• Halogens

• Noble Gases

• Alkali Metals

• Transition Metals

What is an atom or bonded group of atoms that has a positive or negative charge?

• ion

• atom

• metal

• nonmetal

Tags

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What is the term of an atom that will lose electron(s) and have a positive change?

• cation

• anion

• electronegativity

• ionic radius

The Halogen group has an oxidation number of -1. Why?

• The Halogen group will gain one electron, therefore have an oxidation number of -1.

• The Halogen group will lose one electron, therefore have an oxidation number of -1.

• The Halogen group will lose seven electrons, therefore have an oxidation number of -1.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Where are metalloids located on the Periodic Table?

• In the s block.

• In the f block.

• In the d block.

• The elements that touch the staircase except aluminum.