Chem Quiz Review GCA PhySci

Ja’Nya creates a model of atoms. The atoms exhibit similar properties, but they do not have the same mass number. Which BEST describes the atoms in Ja’Nya’s model?

• The atoms are isotopes.

• The atoms are ions.

• The atoms have different numbers of protons.

• The atoms have different numbers of electrons.

Tags

NGSS.MS-PS1-1

The table lists the atomic number and atomic mass of four different atoms. Which 2 atoms represent the same element?

• X and Y

• W and X

• W and Y

• Z and Y

Tags

NGSS.MS-PS1-1

Select all properties of METALS.

• good conductors of heat and electricity

• brittle

• malleable and ductile

• lustrous

• semiconductor

Select all properties of METALLOIDS.

• Good conductors of heat and electricity

• brittle

• shiny and solid at room temperature

• semiconductor

• low melting point, gases at room temperature

Select all properties of NONMETALS.

• good conductors of heat and eletricity

• good insulators; poor conductors

• brittle

• malleable and ductile

• form cations or no ions

Elements in the same _____ have similar properties.

• period

• group or family

• state

• class

Solid particles

• vibrate in place.

• slide past one another staying fairly close to one another.

• have lots of space between the particles and are moving very fast in all directions.

• do not move at all.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Liquid particles

• vibrate in place.

• slide past one another staying fairly close to one another.

• have lots of space between the particles and are moving very fast in all directions.

• do not move at all.

Tags

NGSS.MS-PS1-4

Gas particles

• vibrate in place.

• slide past one another staying fairly close to one another.

• have lots of space between the particles and are moving very fast in all directions.

• do not move at all.

Tags

NGSS.MS-PS1-4

Which has the least energy.

• ice

• liquid water

• steam

• water vapor

Tags

NGSS.MS-PS1-4