chemistry form 4 chapter 2

Which of the following defines matter?

• Anything that has mass and takes up space.

• Anything that has density.

• Mass over volume.

• It doesn't matter.

Tags

NGSS.MS-PS1-5

In any given atom, there is an equal number of protons and neutrons.

• True

• False

An element's nucleon number gives us which of the following:

• Protons and neutrons

• Neutrons and electrons

• Protons and electrons

• Number of orbitals

Tags

NGSS.HS-PS1-8

Chlorine has an proton number of 17 and has 18 neutrons. What is the nucleon number?

• 35

• 18

• 17

• 1

An atom can only hold up to 2 electrons in its innermost shell.

• True

• False

Which of the following best describes the octet rule?

• Atoms are most stable with 8 electrons in its valence shell

• Atoms are most stable with 8 orbitals

• Atoms are most stable with 8 protons

• Atoms are most stable with 8 electrons in its innermost shell

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Subatomic particle with a negative charge

• proton

• electron

• neutron

• nucleus

Subatomic particle with a positive charge

• proton

• neutron

• electron

• isotope

electrons located on the last shell of an atom

• isotopes

• valence electrons

• plasma

• element

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons

• isotope

• cohesion

• molecule

• compound