The positively charged particles in the center of an atom are called what?

• Quark

• Neutron

• Proton

• Electron

Tags

NGSS.HS-PS1-8

What is the charge of an electron?

• Negative

• Neutral

• -2

• Positive

Tags

NGSS.MS-PS2-3

What TWO items can be found in the nucleus?

• Protons

• Neutrons

• Croutons

• Electrons

Select the correct statement about the atoms.

Atom A has 20 neutrons, 20 electrons, and 20 protons.

Atom B has 21 Neutrons, 20 electrons, and 20 protons.

• Atom B has a negative charge

• They are atoms for different elements

• They are isotopes of the same atom

• Atom A has a positive charge

The neutron has a -?

The image shows a block from the periodic table. The number 26 represents what?

• The number of neutrons in the element carbon

• Atomic mass of the element iron

• Atomic number of the element iron

• Number of valence electrons in the element carbon

Which of the following lists the elements in order, from those having the least protons to those that have the most protons in the atoms?

• O, N, B, Li

• O, S, Se, Te

• Na, S, Al, Cl

• Rb, K, Na, Li

Tags

NGSS.MS-PS1-1

An element that is a gas would most likely be found in which region of the periodic table shown?

• A

• B

• C

Where would metals be found on the Periodic Table?

• A

• B

• C

Tags

NGSS.MS-PS1-1

Elements are arranged in the modern periodic table according to-