CIA #1 Review

What is the identity of this atom?

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NGSS.MS-PS1-1

The dark particles in the middle are called?

• Protons

• Neutrons

• Electrons

• Leptons

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NGSS.MS-PS1-1

The charge of this atom would be?

• +1

• +2

• -1

• -2

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NGSS.MS-PS1-1

An ion is...

• an atom with the same protons but different neutrons

• An atom with more electrons than neutrons

• An atom with a charge

• an atom with different mass with a different number of neutrons

An element has 17 protons, 17 electrons and 21 neutrons. Check all that apply.

• The element name is chlorine

• The element is oxygen

• the element is an ion

• the element is an isotope

• the elements mass number is 38

Tags

NGSS.MS-PS1-1

How many neutrons does U-238 has, it is atomic number is 92?

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NGSS.MS-PS1-1

What is an atom called that has gained or lost electrons?

1An ion has 11 protons and 10 electrons. Which of the following is TRUE about this ion?  

• It has lost an electron and become negatively charged.

• It has lost an electron and become positively charged.

• It has gained an electron and become negatively charged.

• It has gained an electron and become positively charged.

Tags

NGSS.MS-PS1-1

How many valence electrons do Alkaline Earth Metals have?

• 1 valence electron

• 2 valence electrons

• 7 valence electrons

• 8 valence electrons

Element X is a solid at room temperature and a good conductor of heat and electricity. Which of the following BEST categorizes Element X?

• Metal

• Nonmetal

• isotope

• Metalloid