Atomos y moléculas Quiz Espanol

What is the smallest unit of matter that retains the identity of the substance?

• Molecule

• Atom

• Electron

• Proton

Which subatomic particle has a positive charge?

• Neutron

• Electron

• Proton

• Photon

What is the center of an atom called?

• Electron cloud

• Nucleus

• Proton

• Neutron

Which subatomic particle is found in the nucleus and has no charge?

• Electron

• Proton

• Neutron

• Positron

What is the chemical formula of a water molecule?

Tags

NGSS.MS-PS1-1

Which of the following is a diatomic molecule?

What is the charge of an electron?

• Positive

• Negative

• Neutral

• Variable

Which of the following elements is a noble gas?

• Oxygen

• Nitrogen

• Helium

• Hydrogen

What is the term for the number of protons in the nucleus of an atom?

• Atomic mass

• Atomic number

• Isotope number

• Mass number

Which molecule is composed of one carbon atom and two oxygen atoms?

Tags

NGSS.MS-PS1-1