Atoms

all matter is made of what

• energy

• atoms

• electrons

• compounds

The positive particles of an atom are

• electrons

• positrons

• neutrons

• protons

the central region of an atom where its neutrons and protons are is its

• nucleus

• electron cloud

• core

• center

an atom with atomic number 6 would have how many protons

• 6

• 12

• 3

• cannot be determined

Particles in an atom that are neutral and have no charge are

• negatrons

• electrons

• neutrons

• protons

What is the atomic number for an element with three protons?

• 2
• 1
• 3
• 6

A particle that moves around the nucleus is a(n)...

• Proton
• Neutron
• Electron
• Quark

Tags

NGSS.MS-PS1-1

In the modern periodic table elements are arranged by:

• atomic mass

• atomic number

• valence electrons

• number of isotopes

What does the 1.00794 stand for?

• Hydrogen

• atomic number

• atomic mass

• atomic explosion

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

• 14
• 7
• 15
• 18

Tags

NGSS.MS-PS1-1