Periodic Table Basics

Which group of the periodic table is composed of inert (not reactive)  gases?

• alkali metals
• alkaline earth metals
• halogens
• noble gases

Elements in a ..................have similar chemical properties.  

• period
• group
• row

Name this group: These metals are the most reactive.

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Tags

NGSS.MS-PS1-2

Name this group: These metals contain familiar metals such as gold, iron, and copper.

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Metals that are the most reactive have the following characteristics

• small atomic radius, high ionization energy, high electronegativity

• large atomic radius, high ionization energy, low electronegativity

• large atomic radius, low ionization energy, low electronegativity

• small atomic radius, low ionization energy, low electronegativity

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

As you move down the periodic table atoms get bigger.  This is because ____________.

• The atoms have more mass.
• The atoms have more protons.
• The atoms have more energy levels
• The atoms have more nuetrons

The mass number is the sum of what two parts of an atom?

• proton and neutron

• proton and electron

• electron and netron

• none of the above

If oxygen-16 has 8 protons, then how many neutrons does it have?

• 9

• 16

• 8

• 7

Fluorine has a mass number of 19. It has 10 neutrons. How many protons does it have?

• 10

• 9

• 8

• 7

Tags

NGSS.MS-PS1-1

The horizontal row on the periodic table is called a

• group
• family
• period
• atomic number