Atomic Theory & Periodic Table

What is the center of an atom called?

• cell
• nucleus
• electron cloud
• sun

Which of the following subatomic particles is NOT found in the nucleus?

• electrons
• protons
• neutrons
• cathode

What charge does the proton have?

• positive
• negative
• neutral
• nobody knows

What charge does the electron have?

• positive
• negative
• neutral
• visa

Tags

NGSS.MS-PS2-3

What charge does the neutron have?

• positive
• negative
• neutral

An atom has 10 protons, 11 electrons, 12 neutrons.  What is this atom called?

• negative ion
• neutral
• positive ion

An atom has 7 protons, 6 electrons, 7 neutrons.  What is this atom called?

• negative ion
• neutron
• positive ion

Tags

NGSS.MS-PS1-1

What are atoms of the same element with different numbers of neutrons called?

• ions
• isotopes
• neutral
• radioactive

If an atom has equal numbers of protons and electrons, what is it called?

• neutral
• isotope
• ion

How many electrons will the first orbital hold?

• 3
• 8
• 2
• unlimited