inorganic chemistry

What is the atomic number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

What is the mass number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

What is an isotope? 

• A charged atom
• An atom with different amounts of neutrons
• An atom with different amounts of protons
• A neutral atom

Tags

NGSS.HS-PS1-8

Different isotopes have...

• different masses
• different atomic numbers
• different electrons
• different protons

Tags

NGSS.HS-PS1-8

Which of the following describes a positive ion?

• It gained electrons
• It lost electrons
• It is called an anion

Which of the following describes a negative ion?

• It lost electrons
• It is called a cation
• It is called an anion

How do atoms form ions?

• By gaining or losing electrons
• By gaining or losing protons
• By destroying electrons
• By gaining or losing neutrons

An atom with a charge of +3 has _______.

• Lost 3 electrons
• Gained 3 electrons
• Lost 3 protons
• Gained 3 protons

Tags

NGSS.HS-PS1-7

How are covalent bonds explained?

• When one atom takes the other atom's electron
• When the atom shares an electron with an another atom
• When the two nucleus merge
• When the neutrons leave the nucleus

How are ionic bonds formed?

• One that has a partial negative on one end and a partial positive on the other
• When opposite charged atoms attract
• When one atom takes a proton
• When one atom takes a neutron