Atoms and Isotopes Review

The number of protons and electrons in an atom are _____, but in an Ion they are ______

• Equal, the same

• The same, Unequal

• Equal, Unequal

• Unequal, Equal

How many electrons does the element above have?

• 13

• 10

• 16

Tags

NGSS.MS-PS1-1

Since atoms are so small, their mass is measured using a special unit called an atomic mass unit (amu), where 1 amu is equal to the mass of a ______ and an ________. .

• Neutron, Nueclus

• Electron, Neutron

• Proton, Electron

• Proton, Neutron

Tags

NGSS.MS-PS1-1

What is the difference between and Ion and an Isotope?

• Ions change the number of electrons. Isotopes change the number of neutrons.

• Ions change the number of protons Isotopes change the number of neutrons.

• Ions change the number of electrons. Isotopes change the number of protons.

• Isotopes change the number of electrons. Ions change the number of neutrons.

Which number showes the Atomic number

• 9

• 4

• 2+

Tags

NGSS.MS-PS1-1

Which particle is NEUTRAL - NO CHARGE?

• Proton

• Neutron

• Electron

• Quark

If Hydrogen has an atomic mass of 1 and one proton then how many neutrons does it have?

• 0

• 1

• 2

• 3

Tags

NGSS.MS-PS1-1

If Potassium lost an electron what is its charge?

• -2

• -1

• +2

• +1

Where are the electrons in the atom found?

• Nucleus

• Electron Cloud

If Beryllium has an atomic number of 4, then how many protons does it have?

• 1

• 3

• 2

• 4