Atomic structure and periodic table

How can we separate salt from a saltwater?

• Evaporation

• Filtration

• Condensation

• Precipitation

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

This is an example of?

• Compound

• Element

• Mixtures

Tags

NGSS.MS-PS1-1

Group 18 of the periodic table are in what physical state in room temperature?

• Solid

• Liquid

• Gas

• Plasma

All of the following are examples of a subatomic particle except for?

• Proton

• Neutron

• Electron

• Atom

He is the first man to organize the periodic table of elements. thus, making him the father of periodic table.

• Aristotle

• Mendeleev

• Darwin

• Fleming

This is a type of mixture where you can't tell the substances in the mixture.

• heterogenous

• Mixed

• Homogenous

• Mixture

This type of model tells us how many valence electrons are present by counting the number of dots around the element symbol.

• Lewis dot structure

• Bohr's model

• Atomic model

• Rutherford's model

Wat is the name of group 5A in the periodic table of Elements?

• Alkali metals

• Metalloids

• Lanthanides

• Nitrogen

What do we call the elements which has the properties of both metals and non metals?

• Unmetal

• somehow metal

• metalloids

• metallic

Air is an example of what type of mixture?

• compounds

• Elements

• Homogenous Mixture

• Heterogenous Mixture