Periodic Table Assessment

Front

What is the atomic number of an element and how is it related to the number of protons?

Back

The atomic number of an element is equal to the number of protons in its nucleus.

Front

Where do valence electrons reside in an atom?

Back

Valence electrons are located in the outermost energy level of the atom.

Front

How many periods are there in the periodic table?

Back

There are 7 periods in the periodic table.

Front

How many valence electrons does Hydrogen have?

Back

Hydrogen has 1 valence electron.

Front

What classification does silicon (Si) fall under in the periodic table?

Back

Silicon (Si) is classified as a metalloid.

Front

What is a proton and what role does it play in an atom?

Back

A proton is a positively charged particle found in the nucleus of an atom, and it determines the atomic number and identity of the element.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons are important because they are involved in forming chemical bonds between atoms.

Front

What is the difference between metals, nonmetals, and metalloids in the periodic table?

Back

Metals are typically shiny, conductive, and malleable; nonmetals are dull, insulative, and brittle; metalloids have properties of both metals and nonmetals.

Front

What is the maximum number of electrons that can occupy the outermost energy level of an atom?

Back

The maximum number of electrons in the outermost energy level is 8, following the octet rule.

Tags

NGSS.HS-PS1-1

Front

What is the periodic law?

Back

The periodic law states that the properties of elements are a periodic function of their atomic numbers.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2