Basic Chemistry

Which subatomic part of an atom gives it a positive charge?

• Neutron

• Proton

• Electron

• Nucleus

An atom of carbon has 6 protons and 7 neutrons in its nucleus. If the atom is neutral, how many electrons does it have?

• 0

• 7

• 6

• 13

Tags

NGSS.MS-PS1-1

How many protons are in carbon?

• 12

• 6

• 0

• 7

Tags

NGSS.MS-PS1-1

In the periodic table of elements, the periods are shown

• horizontally

• vertically

• diagonally

• upside down

What type of chemical bond involves the transfer of electrons from one atom to another?

• Covalent bond

• Ionic bond

• Metallic bond

• Hydrogen bond

Tags

DOK Level 1: Recall

How many bonds will a C atom form?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Some molecules are compounds, but not ALL molecules are compounds.

• True

• False

Tags

NGSS.MS-PS1-1

H₂O

• is a compound but not a molecule

• is only a molecule and not a compound

• is a compound and also a molecule

• is neither a compound or molecule

Tags

NGSS.MS-PS1-1

O₂ Gas

• is a compound

• is not a molecule

• is a solid

• is an example of a molecule, but not a compound

Tags

NGSS.MS-PS1-1

What can be inferred from the picture?

• Elements are always made of individual atoms

• Mixtures contain only one type of molecule

• Molecules always make compounds

• Compounds are pure substances

Tags

NGSS.MS-PS1-1