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Atomic Concepts Review
100

This element is in Group 1, Period 2, and reacts violently with water.

What is lithium?

100

The atomic radius generally increases in this direction in a group of the Periodic Table 

What is down a group?

100

Which element is a liquid metal at room temperature? Na, Mg, Hg, Al

What is mercury (Hg)?

100

Which element is a nonmetal and can be found in all organic compounds? 

What is carbon?

100

This subatomic particle is the smallest

What is an electron?

200

This element is named after the sun, helios

What is helium?

200

The periodic table is organized by 

Increasing atomic number 

200

Which is not a metalloid? 

B, Si, Ge, Ca

What is calcium (Ca)?

200

This gas makes up over 75% of Earth’s atmosphere.

What is nitrogen (N)?

200

Name the element that has a symbol of Se

What is selenium?

300

Identify the element with the highest electronegativity

What is fluorine?

300

This property increases across a period and is a measure of how strongly an atom attracts electrons.

What is electronegativity?

300

Which Group 1 element is a gas at room temperature? 

Li, Na, K, H

What is hydrogen gas?

300

This element is essential for bones and also found in chalk.

What is calcium (Ca)?

300

Which group contains 3 valence electrons?

What is group 13?

400

Identify the metalloid that can be found in Period 3

What is Silicon?

400

Across a period, how does electronegativity decrease?

What is from right to left?

400

Which of these is not a transition metal? 

Fe, Zn, Cu, Pb

What is lead (Pb)?

400

This element comes from the word ferrum? 

What is iron (Fe)?

400

Which group is the most stable group?

What is group 18?

500

This element has the highest number of protons

What is Oganesson?

500

Determine the relationship between the atomic radii of elements and their shells down a group?

As you travel down a group on the periodic table, the atomic radius increases due to the increasing number of electron shells

500

Which of these elements is not in the same period?
Na, Al, S, K

What is potassium (K)?

500

This element comes from the word aurum. Identify this element

What is gold? Au

500

An element with 2 valence electrons and can be found in the atmosphere

What is helium?