Year 9 Science | Inside the atom

How many electrons does iron have?

• 56

• 26

• 30

• 82

Tags

NGSS.HS-PS1-1

Name the pictured element.

• Nitrogen

• Nickel

• Sodium

• Neon

Tags

NGSS.MS-PS1-1

What is the number of protons that the element in this image contain?

• 18

• 14

• 15

• 7

What is the atomic mass of the pictured isotope?

• 17

• 18

• 35

• 36

Tags

NGSS.MS-PS1-1

What model of an atom is shown in the diagram?

• nuclear

• Dalton

• gamma

• plum pudding

Tags

NGSS.MS-PS1-1

Most of the mass in an atom is made up of _____________________?

• protons and electrons

• protons and neutrons

• neutrons and electrons

• electrons and quarks

Tags

NGSS.MS-PS1-1

What is fired at the gold foil in this experiment?

• beta particles

• alpha particles

• gamma rays

• protons

Different isotopes have different _____________.

• Different masses

• Different electrons

• Different atomic numbers

• Different protons

How many different types of atoms are elements made from?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many neutrons does a Carbon 13 atom have?

• 5

• 6

• 7

• 8