Basic Chemistry

What is the volume of the two red spheres?

• 4 ml

• 6 ml

• 2 ml

• 8 ml

An atom of iodine has 7 valence electrons. What will an atom of iodine MOST likely do to be stable?

• Lose 1 electron

• Lost 7 electrons

• Gain 1 electron

• Neither gain nor lose any valence electrons

An atom of neon has 8 valence electrons. What will an atom of neon MOST likely do to be stable?

• Gain 1 electron

• Lose 2 electrons

• Lose 8 electrons

• Neither gain nor lose any valence electrons

What type of bond is formed when atoms share electrons?

• Covalent

• Ionic

• Hydrogen

• Polyatomic

The number of protons in the nucleus of an atom?

• Isotope

• Atomic mass

• Atomic number

• Element

A certain atom of oxygen contains 8 protons, 8 neutrons, & 8 electrons. Another atom of unknown identity contains 9 protons. Which of the following MUST be true about this unidentified atom?

• It has 9 neutrons in its nucleus.

• It is an isotope of oxygen.

• Its atomic mass is a decimal number.

• It cannot be an atom of oxygen.

Tags

NGSS.MS-PS1-1

How are ionic and covalent bonds alike?

• They both form organic molecules.

• They both fill outer electron shells.

• They both transfer electrons from one atom to another.

• They both transfer protons from one atom to another.

The smallest particle of any type of matter is known by which of the following terms?

• Element

• Compound

• Atom

• Chemical

What subatomic particle is positively charged and is located inside of the nucleus?

• Proton

• Neutron

• Electron

• Ion

What are the 3 particles that make-up the atom?

• protons, neutrons, and isotopes

• neutrons, isotopes, and electrons

• positives, negatives, and electrons

• protons, neutrons, and electrons

Tags

NGSS.MS-PS1-1