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Atomic structure and isotope-AH

Authored by Nina XU

Chemistry, Science

9th - 12th Grade

Used 7+ times

Atomic structure and isotope-AH
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40 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Atoms of elements that are in the same group have the same number of

protons.

neutrons.

valence electrons.

protons and neutrons.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following elements is an alkali metal?

calcium

magnesium

mercury

sodium

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In Mendeleev's periodic table, elements in each column had similar

atomic masses.

properties.

atomic numbers.

symbols.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Each column of the periodic table is

an element.

a group.

an isotope.

a period.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The order of elements in the modern periodic table is based on an element's

atomic number

proton number

chemical symbol

atomic mass

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement about the alkali metals is correct?

They are located in the left-most column of the periodic table.

They are extremely nonreactive.

They are usually gases.

They form negative ions with a 1- charge.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Metals tend to be

gases.

dull.

brittle.

good conductors.

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