S1 Chemistry Review

What is the electron configuration for the Calcium Ion?

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²

• 1s² 2s² 2p⁶ 3s² 3p⁶

• 1s² 2s² 2p⁶

• 1s² 2s² 2p⁶ 3s² 3p³

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

To which category of elements does an element belong if it is a good conductor of electricity?

• metals

• nonmetals

• noble gases

• semiconductors

A compound composed of cations and anions is called...

• covalent compound

• polar compound

• ionic compound

• metallic compound

What is the number of electrons in the outermost energy level of an oxygen atom?

• 2

• 4

• 6

• 8

Tags

NGSS.HS-PS1-1

What is the name given to the electrons in the highest occupied energy level of an atom?

• ground state electrons

• nuclear electrons

• excited state electrons

• valence electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the charge on a cation?

• neutral

• positive

• negative

• zero

Which of the following categories includes the majority of the elements?

• metals

• nonmetals

• noble gases

• metalloids

The first letter in a properly written chemical symbol is always...

• lowercase

• uppercase

• cursive

• positive

The first quantum number indicates what property of an electron?

• shape of the orbital

• orientation of the orbital

• energy level

• spin of the electron

What does the atomic mass of an element depend on?

• protons only

• protons plus neutrons

• neutrons only

• protons plus electrons

Tags

NGSS.HS-PS1-7