Ions and Atoms

An atom has an electron configuration of 2,8,7. What will be the charge of the ion that it will form?

• 1+

• 2+

• 1-

• 2-

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is electron configuration for an atom with proton number 9

• 2,7

• 2,8

• 2,9

What is the electron configuration for atom X?

• 2,4

• 2,5

• 7

• 2,8

Tags

NGSS.MS-PS1-1

What is the proton number of lithium?

• 3

• 4

• 7

What subatomic particle has most likely been changed in an ion?

• The number of electrons

• The number of protons

• The number of neutrons

Name this isotope:

• Beryllium-6

• Beryllium-4

• Beryllium-1

• Beryllium-10

• Beryllium- 5

Tags

NGSS.MS-PS1-1

What is a negatively charged atom called?

• Anion

• Cation

• Ion

Which particles make up the nucleus of an atom?

• electron, neutron and proton

• electron and neutron

• neutron and proton

• proton only

A particle has 7 protons, 7 neutrons and 10 electrons. This particle is a/an

• atom

• ion

• isotope

• element

Tags

NGSS.MS-PS1-1

An atom has an electron configuration of 2,8. Which group does it belong to?

• Group I

• Group II

• Group VIII