TNReady Science

Which of the following makes up the nucleus of an atom?

• protons and neutrons

• protons and electrons

• neutrons only

• protons only

The picture shows a model of a helium atom and a lithium atom. Which of the following statements is true about the lithium and helium atoms?

• Helium has more protons, neutrons, and electrons.

• Lithium is much smaller than helium.

• There is no difference between helium and lithium.

• Lithium has more protons, neutrons, and electrons

Tags

NGSS.MS-PS1-1

If you want to identify an element, which piece of information would best help you identify it?

• how many protons the element has

• what charge the element has

• how many neutrons the element has

• how many electrons the element has

Within an atom, electrons

• are inside the nucleus and are motionless

• are outside the nucleus and are motionless

• are in motion outside the nucleus

• are in motion inside the nucleus

The word "Science" came from a Latin word that literally means:

• good

• life

• knowledge

• earth

Which of the following is NOT one of the main ideas of physical science?

• The universe is very old and very large.

• Forces cause changes in motion.

• Energy can be transferred from one form to another, but it can never be destroyed.

• One of the main branches of natural science is biology.

Tags

NGSS.MS-PS3-5

A copper wire is made of copper (Cu) atoms. Which of the following best describes the copper atoms?

• They would be mostly the same, but some would have more protons than others.

• They are all basically the same, but the number of neutrons could vary.

• They are all exactly the same.

• They each have different numbers of protons, neutrons, and electrons.

Tags

NGSS.MS-PS1-1

Which of these is the part of an atom that contains the protons and neutrons?

• shell

• nucleus

• orbital

• electron

The _____ of an atom are negatively charged.

• electrons

• negatrons

• neutrons

• protons

The part of an atom that would be found outside the nucleus is the ______.

• neutron

• proton

• electron

• positron